[ALSA] alsa core: convert to list_for_each_entry*
Johannes Berg [Thu, 5 Oct 2006 14:02:22 +0000 (16:02 +0200)]
This patch converts most uses of list_for_each to list_for_each_entry all
across alsa. In some place apparently an item can be on a list with
different pointers so of course that isn't compatible with list_for_each, I
therefore didn't touch those places.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

12 files changed:
sound/core/control.c
sound/core/control_compat.c
sound/core/device.c
sound/core/hwdep.c
sound/core/memalloc.c
sound/core/pcm.c
sound/core/rawmidi.c
sound/core/seq/seq_clientmgr.c
sound/core/seq/seq_device.c
sound/core/seq/seq_ports.c
sound/core/seq/seq_virmidi.c
sound/core/timer.c

index 0c7bcd6..67f09b8 100644 (file)
@@ -108,7 +108,6 @@ static void snd_ctl_empty_read_queue(struct snd_ctl_file * ctl)
 static int snd_ctl_release(struct inode *inode, struct file *file)
 {
        unsigned long flags;
-       struct list_head *list;
        struct snd_card *card;
        struct snd_ctl_file *ctl;
        struct snd_kcontrol *control;
@@ -122,12 +121,10 @@ static int snd_ctl_release(struct inode *inode, struct file *file)
        list_del(&ctl->list);
        write_unlock_irqrestore(&card->ctl_files_rwlock, flags);
        down_write(&card->controls_rwsem);
-       list_for_each(list, &card->controls) {
-               control = snd_kcontrol(list);
+       list_for_each_entry(control, &card->controls, list)
                for (idx = 0; idx < control->count; idx++)
                        if (control->vd[idx].owner == ctl)
                                control->vd[idx].owner = NULL;
-       }
        up_write(&card->controls_rwsem);
        snd_ctl_empty_read_queue(ctl);
        kfree(ctl);
@@ -140,7 +137,6 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
                    struct snd_ctl_elem_id *id)
 {
        unsigned long flags;
-       struct list_head *flist;
        struct snd_ctl_file *ctl;
        struct snd_kctl_event *ev;
        
@@ -149,14 +145,11 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
 #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
        card->mixer_oss_change_count++;
 #endif
-       list_for_each(flist, &card->ctl_files) {
-               struct list_head *elist;
-               ctl = snd_ctl_file(flist);
+       list_for_each_entry(ctl, &card->ctl_files, list) {
                if (!ctl->subscribed)
                        continue;
                spin_lock_irqsave(&ctl->read_lock, flags);
-               list_for_each(elist, &ctl->events) {
-                       ev = snd_kctl_event(elist);
+               list_for_each_entry(ev, &ctl->events, list) {
                        if (ev->id.numid == id->numid) {
                                ev->mask |= mask;
                                goto _found;
@@ -277,11 +270,9 @@ EXPORT_SYMBOL(snd_ctl_free_one);
 static unsigned int snd_ctl_hole_check(struct snd_card *card,
                                       unsigned int count)
 {
-       struct list_head *list;
        struct snd_kcontrol *kctl;
 
-       list_for_each(list, &card->controls) {
-               kctl = snd_kcontrol(list);
+       list_for_each_entry(kctl, &card->controls, list) {
                if ((kctl->id.numid <= card->last_numid &&
                     kctl->id.numid + kctl->count > card->last_numid) ||
                    (kctl->id.numid <= card->last_numid + count - 1 &&
@@ -498,12 +489,10 @@ EXPORT_SYMBOL(snd_ctl_rename_id);
  */
 struct snd_kcontrol *snd_ctl_find_numid(struct snd_card *card, unsigned int numid)
 {
-       struct list_head *list;
        struct snd_kcontrol *kctl;
 
        snd_assert(card != NULL && numid != 0, return NULL);
-       list_for_each(list, &card->controls) {
-               kctl = snd_kcontrol(list);
+       list_for_each_entry(kctl, &card->controls, list) {
                if (kctl->id.numid <= numid && kctl->id.numid + kctl->count > numid)
                        return kctl;
        }
@@ -527,14 +516,12 @@ EXPORT_SYMBOL(snd_ctl_find_numid);
 struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card,
                                     struct snd_ctl_elem_id *id)
 {
-       struct list_head *list;
        struct snd_kcontrol *kctl;
 
        snd_assert(card != NULL && id != NULL, return NULL);
        if (id->numid != 0)
                return snd_ctl_find_numid(card, id->numid);
-       list_for_each(list, &card->controls) {
-               kctl = snd_kcontrol(list);
+       list_for_each_entry(kctl, &card->controls, list) {
                if (kctl->id.iface != id->iface)
                        continue;
                if (kctl->id.device != id->device)
@@ -1182,7 +1169,6 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg
 {
        struct snd_ctl_file *ctl;
        struct snd_card *card;
-       struct list_head *list;
        struct snd_kctl_ioctl *p;
        void __user *argp = (void __user *)arg;
        int __user *ip = argp;
@@ -1232,8 +1218,7 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg
 #endif
        }
        down_read(&snd_ioctl_rwsem);
-       list_for_each(list, &snd_control_ioctls) {
-               p = list_entry(list, struct snd_kctl_ioctl, list);
+       list_for_each_entry(p, &snd_control_ioctls, list) {
                err = p->fioctl(card, ctl, cmd, arg);
                if (err != -ENOIOCTLCMD) {
                        up_read(&snd_ioctl_rwsem);
@@ -1357,13 +1342,11 @@ EXPORT_SYMBOL(snd_ctl_register_ioctl_compat);
 static int _snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn,
                                     struct list_head *lists)
 {
-       struct list_head *list;
        struct snd_kctl_ioctl *p;
 
        snd_assert(fcn != NULL, return -EINVAL);
        down_write(&snd_ioctl_rwsem);
-       list_for_each(list, lists) {
-               p = list_entry(list, struct snd_kctl_ioctl, list);
+       list_for_each_entry(p, lists, list) {
                if (p->fioctl == fcn) {
                        list_del(&p->list);
                        up_write(&snd_ioctl_rwsem);
@@ -1453,7 +1436,6 @@ static int snd_ctl_dev_register(struct snd_device *device)
 static int snd_ctl_dev_disconnect(struct snd_device *device)
 {
        struct snd_card *card = device->device_data;
-       struct list_head *flist;
        struct snd_ctl_file *ctl;
        int err, cardnum;
 
@@ -1462,8 +1444,7 @@ static int snd_ctl_dev_disconnect(struct snd_device *device)
        snd_assert(cardnum >= 0 && cardnum < SNDRV_CARDS, return -ENXIO);
 
        down_read(&card->controls_rwsem);
-       list_for_each(flist, &card->ctl_files) {
-               ctl = snd_ctl_file(flist);
+       list_for_each_entry(ctl, &card->ctl_files, list) {
                wake_up(&ctl->change_sleep);
                kill_fasync(&ctl->fasync, SIGIO, POLL_ERR);
        }
index ab48962..9311ca3 100644 (file)
@@ -392,7 +392,7 @@ enum {
 static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
 {
        struct snd_ctl_file *ctl;
-       struct list_head *list;
+       struct snd_kctl_ioctl *p;
        void __user *argp = compat_ptr(arg);
        int err;
 
@@ -427,8 +427,7 @@ static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, uns
        }
 
        down_read(&snd_ioctl_rwsem);
-       list_for_each(list, &snd_control_compat_ioctls) {
-               struct snd_kctl_ioctl *p = list_entry(list, struct snd_kctl_ioctl, list);
+       list_for_each_entry(p, &snd_control_compat_ioctls, list) {
                if (p->fioctl) {
                        err = p->fioctl(ctl->card, ctl, cmd, arg);
                        if (err != -ENOIOCTLCMD) {
index ccb2581..5858b02 100644 (file)
@@ -79,13 +79,11 @@ EXPORT_SYMBOL(snd_device_new);
  */
 int snd_device_free(struct snd_card *card, void *device_data)
 {
-       struct list_head *list;
        struct snd_device *dev;
        
        snd_assert(card != NULL, return -ENXIO);
        snd_assert(device_data != NULL, return -ENXIO);
-       list_for_each(list, &card->devices) {
-               dev = snd_device(list);
+       list_for_each_entry(dev, &card->devices, list) {
                if (dev->device_data != device_data)
                        continue;
                /* unlink */
@@ -124,13 +122,11 @@ EXPORT_SYMBOL(snd_device_free);
  */
 int snd_device_disconnect(struct snd_card *card, void *device_data)
 {
-       struct list_head *list;
        struct snd_device *dev;
 
        snd_assert(card != NULL, return -ENXIO);
        snd_assert(device_data != NULL, return -ENXIO);
-       list_for_each(list, &card->devices) {
-               dev = snd_device(list);
+       list_for_each_entry(dev, &card->devices, list) {
                if (dev->device_data != device_data)
                        continue;
                if (dev->state == SNDRV_DEV_REGISTERED &&
@@ -161,14 +157,12 @@ int snd_device_disconnect(struct snd_card *card, void *device_data)
  */
 int snd_device_register(struct snd_card *card, void *device_data)
 {
-       struct list_head *list;
        struct snd_device *dev;
        int err;
 
        snd_assert(card != NULL, return -ENXIO);
        snd_assert(device_data != NULL, return -ENXIO);
-       list_for_each(list, &card->devices) {
-               dev = snd_device(list);
+       list_for_each_entry(dev, &card->devices, list) {
                if (dev->device_data != device_data)
                        continue;
                if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
@@ -192,13 +186,11 @@ EXPORT_SYMBOL(snd_device_register);
  */
 int snd_device_register_all(struct snd_card *card)
 {
-       struct list_head *list;
        struct snd_device *dev;
        int err;
        
        snd_assert(card != NULL, return -ENXIO);
-       list_for_each(list, &card->devices) {
-               dev = snd_device(list);
+       list_for_each_entry(dev, &card->devices, list) {
                if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
                        if ((err = dev->ops->dev_register(dev)) < 0)
                                return err;
@@ -215,12 +207,10 @@ int snd_device_register_all(struct snd_card *card)
 int snd_device_disconnect_all(struct snd_card *card)
 {
        struct snd_device *dev;
-       struct list_head *list;
        int err = 0;
 
        snd_assert(card != NULL, return -ENXIO);
-       list_for_each(list, &card->devices) {
-               dev = snd_device(list);
+       list_for_each_entry(dev, &card->devices, list) {
                if (snd_device_disconnect(card, dev->device_data) < 0)
                        err = -ENXIO;
        }
@@ -234,7 +224,6 @@ int snd_device_disconnect_all(struct snd_card *card)
 int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd)
 {
        struct snd_device *dev;
-       struct list_head *list;
        int err;
        unsigned int range_low, range_high;
 
@@ -242,8 +231,7 @@ int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd)
        range_low = cmd * SNDRV_DEV_TYPE_RANGE_SIZE;
        range_high = range_low + SNDRV_DEV_TYPE_RANGE_SIZE - 1;
       __again:
-       list_for_each(list, &card->devices) {
-               dev = snd_device(list);         
+       list_for_each_entry(dev, &card->devices, list) {
                if (dev->type >= range_low && dev->type <= range_high) {
                        if ((err = snd_device_free(card, dev->device_data)) < 0)
                                return err;
index 46b4768..a6a6ad0 100644 (file)
@@ -47,14 +47,11 @@ static int snd_hwdep_dev_disconnect(struct snd_device *device);
 
 static struct snd_hwdep *snd_hwdep_search(struct snd_card *card, int device)
 {
-       struct list_head *p;
        struct snd_hwdep *hwdep;
 
-       list_for_each(p, &snd_hwdep_devices) {
-               hwdep = list_entry(p, struct snd_hwdep, list);
+       list_for_each_entry(hwdep, &snd_hwdep_devices, list)
                if (hwdep->card == card && hwdep->device == device)
                        return hwdep;
-       }
        return NULL;
 }
 
@@ -468,15 +465,12 @@ static int snd_hwdep_dev_disconnect(struct snd_device *device)
 static void snd_hwdep_proc_read(struct snd_info_entry *entry,
                                struct snd_info_buffer *buffer)
 {
-       struct list_head *p;
        struct snd_hwdep *hwdep;
 
        mutex_lock(&register_mutex);
-       list_for_each(p, &snd_hwdep_devices) {
-               hwdep = list_entry(p, struct snd_hwdep, list);
+       list_for_each_entry(hwdep, &snd_hwdep_devices, list)
                snd_iprintf(buffer, "%02i-%02i: %s\n",
                            hwdep->card->number, hwdep->device, hwdep->name);
-       }
        mutex_unlock(&register_mutex);
 }
 
index bc0bd09..f057430 100644 (file)
@@ -406,19 +406,17 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab)
  */
 size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id)
 {
-       struct list_head *p;
        struct snd_mem_list *mem;
 
        snd_assert(dmab, return 0);
 
        mutex_lock(&list_mutex);
-       list_for_each(p, &mem_list_head) {
-               mem = list_entry(p, struct snd_mem_list, list);
+       list_for_each_entry(mem, &mem_list_head, list) {
                if (mem->id == id &&
                    (mem->buffer.dev.dev == NULL || dmab->dev.dev == NULL ||
                     ! memcmp(&mem->buffer.dev, &dmab->dev, sizeof(dmab->dev)))) {
                        struct device *dev = dmab->dev.dev;
-                       list_del(p);
+                       list_del(&mem->list);
                        *dmab = mem->buffer;
                        if (dmab->dev.dev == NULL)
                                dmab->dev.dev = dev;
@@ -488,7 +486,6 @@ static int snd_mem_proc_read(char *page, char **start, off_t off,
 {
        int len = 0;
        long pages = snd_allocated_pages >> (PAGE_SHIFT-12);
-       struct list_head *p;
        struct snd_mem_list *mem;
        int devno;
        static char *types[] = { "UNKNOWN", "CONT", "DEV", "DEV-SG", "SBUS" };
@@ -498,8 +495,7 @@ static int snd_mem_proc_read(char *page, char **start, off_t off,
                        "pages  : %li bytes (%li pages per %likB)\n",
                        pages * PAGE_SIZE, pages, PAGE_SIZE / 1024);
        devno = 0;
-       list_for_each(p, &mem_list_head) {
-               mem = list_entry(p, struct snd_mem_list, list);
+       list_for_each_entry(mem, &mem_list_head, list) {
                devno++;
                len += snprintf(page + len, count - len,
                                "buffer %d : ID %08x : type %s\n",
index 4701f07..76fcc52 100644 (file)
@@ -45,11 +45,9 @@ static int snd_pcm_dev_disconnect(struct snd_device *device);
 
 static struct snd_pcm *snd_pcm_search(struct snd_card *card, int device)
 {
-       struct list_head *p;
        struct snd_pcm *pcm;
 
-       list_for_each(p, &snd_pcm_devices) {
-               pcm = list_entry(p, struct snd_pcm, list);
+       list_for_each_entry(pcm, &snd_pcm_devices, list) {
                if (pcm->card == card && pcm->device == device)
                        return pcm;
        }
@@ -782,7 +780,6 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
        struct snd_pcm_runtime *runtime;
        struct snd_ctl_file *kctl;
        struct snd_card *card;
-       struct list_head *list;
        int prefer_subdevice = -1;
        size_t size;
 
@@ -795,8 +792,7 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
 
        card = pcm->card;
        down_read(&card->controls_rwsem);
-       list_for_each(list, &card->ctl_files) {
-               kctl = snd_ctl_file(list);
+       list_for_each_entry(kctl, &card->ctl_files, list) {
                if (kctl->pid == current->pid) {
                        prefer_subdevice = kctl->prefer_pcm_subdevice;
                        if (prefer_subdevice != -1)
@@ -941,7 +937,7 @@ static int snd_pcm_dev_register(struct snd_device *device)
 {
        int cidx, err;
        struct snd_pcm_substream *substream;
-       struct list_head *list;
+       struct snd_pcm_notify *notify;
        char str[16];
        struct snd_pcm *pcm = device->device_data;
        struct device *dev;
@@ -988,11 +984,10 @@ static int snd_pcm_dev_register(struct snd_device *device)
                for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
                        snd_pcm_timer_init(substream);
        }
-       list_for_each(list, &snd_pcm_notify_list) {
-               struct snd_pcm_notify *notify;
-               notify = list_entry(list, struct snd_pcm_notify, list);
+
+       list_for_each_entry(notify, &snd_pcm_notify_list, list)
                notify->n_register(pcm);
-       }
+
        mutex_unlock(&register_mutex);
        return 0;
 }
@@ -1035,7 +1030,7 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
 
 int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
 {
-       struct list_head *p;
+       struct snd_pcm *pcm;
 
        snd_assert(notify != NULL &&
                   notify->n_register != NULL &&
@@ -1044,13 +1039,12 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
        mutex_lock(&register_mutex);
        if (nfree) {
                list_del(&notify->list);
-               list_for_each(p, &snd_pcm_devices)
-                       notify->n_unregister(list_entry(p,
-                                                       struct snd_pcm, list));
+               list_for_each_entry(pcm, &snd_pcm_devices, list)
+                       notify->n_unregister(pcm);
        } else {
                list_add_tail(&notify->list, &snd_pcm_notify_list);
-               list_for_each(p, &snd_pcm_devices)
-                       notify->n_register(list_entry(p, struct snd_pcm, list));
+               list_for_each_entry(pcm, &snd_pcm_devices, list)
+                       notify->n_register(pcm);
        }
        mutex_unlock(&register_mutex);
        return 0;
@@ -1066,12 +1060,10 @@ EXPORT_SYMBOL(snd_pcm_notify);
 static void snd_pcm_proc_read(struct snd_info_entry *entry,
                              struct snd_info_buffer *buffer)
 {
-       struct list_head *p;
        struct snd_pcm *pcm;
 
        mutex_lock(&register_mutex);
-       list_for_each(p, &snd_pcm_devices) {
-               pcm = list_entry(p, struct snd_pcm, list);
+       list_for_each_entry(pcm, &snd_pcm_devices, list) {
                snd_iprintf(buffer, "%02i-%02i: %s : %s",
                            pcm->card->number, pcm->device, pcm->id, pcm->name);
                if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
index 0f055bf..7e6ceec 100644 (file)
@@ -61,14 +61,11 @@ static DEFINE_MUTEX(register_mutex);
 
 static struct snd_rawmidi *snd_rawmidi_search(struct snd_card *card, int device)
 {
-       struct list_head *p;
        struct snd_rawmidi *rawmidi;
 
-       list_for_each(p, &snd_rawmidi_devices) {
-               rawmidi = list_entry(p, struct snd_rawmidi, list);
+       list_for_each_entry(rawmidi, &snd_rawmidi_devices, list)
                if (rawmidi->card == card && rawmidi->device == device)
                        return rawmidi;
-       }
        return NULL;
 }
 
@@ -389,7 +386,6 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
        struct snd_rawmidi *rmidi;
        struct snd_rawmidi_file *rawmidi_file;
        wait_queue_t wait;
-       struct list_head *list;
        struct snd_ctl_file *kctl;
 
        if (maj == snd_major) {
@@ -426,8 +422,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
        while (1) {
                subdevice = -1;
                down_read(&card->controls_rwsem);
-               list_for_each(list, &card->ctl_files) {
-                       kctl = snd_ctl_file(list);
+               list_for_each_entry(kctl, &card->ctl_files, list) {
                        if (kctl->pid == current->pid) {
                                subdevice = kctl->prefer_rawmidi_subdevice;
                                if (subdevice != -1)
@@ -575,7 +570,6 @@ int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info
        struct snd_rawmidi *rmidi;
        struct snd_rawmidi_str *pstr;
        struct snd_rawmidi_substream *substream;
-       struct list_head *list;
 
        mutex_lock(&register_mutex);
        rmidi = snd_rawmidi_search(card, info->device);
@@ -589,8 +583,7 @@ int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info
                return -ENOENT;
        if (info->subdevice >= pstr->substream_count)
                return -ENXIO;
-       list_for_each(list, &pstr->substreams) {
-               substream = list_entry(list, struct snd_rawmidi_substream, list);
+       list_for_each_entry(substream, &pstr->substreams, list) {
                if ((unsigned int)substream->number == info->subdevice)
                        return snd_rawmidi_info(substream, info);
        }
@@ -1313,14 +1306,14 @@ static void snd_rawmidi_proc_info_read(struct snd_info_entry *entry,
        struct snd_rawmidi *rmidi;
        struct snd_rawmidi_substream *substream;
        struct snd_rawmidi_runtime *runtime;
-       struct list_head *list;
 
        rmidi = entry->private_data;
        snd_iprintf(buffer, "%s\n\n", rmidi->name);
        mutex_lock(&rmidi->open_mutex);
        if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_OUTPUT) {
-               list_for_each(list, &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
-                       substream = list_entry(list, struct snd_rawmidi_substream, list);
+               list_for_each_entry(substream,
+                                   &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams,
+                                   list) {
                        snd_iprintf(buffer,
                                    "Output %d\n"
                                    "  Tx bytes     : %lu\n",
@@ -1339,8 +1332,9 @@ static void snd_rawmidi_proc_info_read(struct snd_info_entry *entry,
                }
        }
        if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_INPUT) {
-               list_for_each(list, &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
-                       substream = list_entry(list, struct snd_rawmidi_substream, list);
+               list_for_each_entry(substream,
+                                   &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams,
+                                   list) {
                        snd_iprintf(buffer,
                                    "Input %d\n"
                                    "  Rx bytes     : %lu\n",
@@ -1625,13 +1619,10 @@ static int snd_rawmidi_dev_disconnect(struct snd_device *device)
 void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream,
                         struct snd_rawmidi_ops *ops)
 {
-       struct list_head *list;
        struct snd_rawmidi_substream *substream;
        
-       list_for_each(list, &rmidi->streams[stream].substreams) {
-               substream = list_entry(list, struct snd_rawmidi_substream, list);
+       list_for_each_entry(substream, &rmidi->streams[stream].substreams, list)
                substream->ops = ops;
-       }
 }
 
 /*
index 532a660..bb9dd9f 100644 (file)
@@ -659,7 +659,6 @@ static int deliver_to_subscribers(struct snd_seq_client *client,
        int err = 0, num_ev = 0;
        struct snd_seq_event event_saved;
        struct snd_seq_client_port *src_port;
-       struct list_head *p;
        struct snd_seq_port_subs_info *grp;
 
        src_port = snd_seq_port_use_ptr(client, event->source.port);
@@ -674,8 +673,7 @@ static int deliver_to_subscribers(struct snd_seq_client *client,
                read_lock(&grp->list_lock);
        else
                down_read(&grp->list_mutex);
-       list_for_each(p, &grp->list_head) {
-               subs = list_entry(p, struct snd_seq_subscribers, src_list);
+       list_for_each_entry(subs, &grp->list_head, src_list) {
                event->dest = subs->info.dest;
                if (subs->info.flags & SNDRV_SEQ_PORT_SUBS_TIMESTAMP)
                        /* convert time according to flag with subscription */
@@ -709,15 +707,14 @@ static int port_broadcast_event(struct snd_seq_client *client,
 {
        int num_ev = 0, err = 0;
        struct snd_seq_client *dest_client;
-       struct list_head *p;
+       struct snd_seq_client_port *port;
 
        dest_client = get_event_dest_client(event, SNDRV_SEQ_FILTER_BROADCAST);
        if (dest_client == NULL)
                return 0; /* no matching destination */
 
        read_lock(&dest_client->ports_lock);
-       list_for_each(p, &dest_client->ports_list_head) {
-               struct snd_seq_client_port *port = list_entry(p, struct snd_seq_client_port, list);
+       list_for_each_entry(port, &dest_client->ports_list_head, list) {
                event->dest.port = port->addr.port;
                /* pass NULL as source client to avoid error bounce */
                err = snd_seq_deliver_single_event(NULL, event,
@@ -2473,11 +2470,10 @@ static void snd_seq_info_dump_subscribers(struct snd_info_buffer *buffer,
 static void snd_seq_info_dump_ports(struct snd_info_buffer *buffer,
                                    struct snd_seq_client *client)
 {
-       struct list_head *l;
+       struct snd_seq_client_port *p;
 
        mutex_lock(&client->ports_mutex);
-       list_for_each(l, &client->ports_list_head) {
-               struct snd_seq_client_port *p = list_entry(l, struct snd_seq_client_port, list);
+       list_for_each_entry(p, &client->ports_list_head, list) {
                snd_iprintf(buffer, "  Port %3d : \"%s\" (%c%c%c%c)\n",
                            p->addr.port, p->name,
                            FLAG_PERM_RD(p->capability),
index b79d011..37852cd 100644 (file)
@@ -106,11 +106,10 @@ static void remove_drivers(void);
 static void snd_seq_device_info(struct snd_info_entry *entry,
                                struct snd_info_buffer *buffer)
 {
-       struct list_head *head;
+       struct ops_list *ops;
 
        mutex_lock(&ops_mutex);
-       list_for_each(head, &opslist) {
-               struct ops_list *ops = list_entry(head, struct ops_list, list);
+       list_for_each_entry(ops, &opslist, list) {
                snd_iprintf(buffer, "snd-%s%s%s%s,%d\n",
                                ops->id,
                                ops->driver & DRIVER_LOADED ? ",loaded" : (ops->driver == DRIVER_EMPTY ? ",empty" : ""),
@@ -143,7 +142,7 @@ void snd_seq_autoload_unlock(void)
 void snd_seq_device_load_drivers(void)
 {
 #ifdef CONFIG_KMOD
-       struct list_head *head;
+       struct ops_list *ops;
 
        /* Calling request_module during module_init()
         * may cause blocking.
@@ -155,8 +154,7 @@ void snd_seq_device_load_drivers(void)
                return;
 
        mutex_lock(&ops_mutex);
-       list_for_each(head, &opslist) {
-               struct ops_list *ops = list_entry(head, struct ops_list, list);
+       list_for_each_entry(ops, &opslist, list) {
                if (! (ops->driver & DRIVER_LOADED) &&
                    ! (ops->driver & DRIVER_REQUESTED)) {
                        ops->used++;
@@ -314,8 +312,8 @@ static int snd_seq_device_dev_disconnect(struct snd_device *device)
 int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry,
                                   int argsize)
 {
-       struct list_head *head;
        struct ops_list *ops;
+       struct snd_seq_device *dev;
 
        if (id == NULL || entry == NULL ||
            entry->init_device == NULL || entry->free_device == NULL)
@@ -341,8 +339,7 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry,
        ops->argsize = argsize;
 
        /* initialize existing devices if necessary */
-       list_for_each(head, &ops->dev_list) {
-               struct snd_seq_device *dev = list_entry(head, struct snd_seq_device, list);
+       list_for_each_entry(dev, &ops->dev_list, list) {
                init_device(dev, ops);
        }
        mutex_unlock(&ops->reg_mutex);
@@ -394,8 +391,8 @@ static struct ops_list * create_driver(char *id)
  */
 int snd_seq_device_unregister_driver(char *id)
 {
-       struct list_head *head;
        struct ops_list *ops;
+       struct snd_seq_device *dev;
 
        ops = find_driver(id, 0);
        if (ops == NULL)
@@ -411,8 +408,7 @@ int snd_seq_device_unregister_driver(char *id)
        /* close and release all devices associated with this driver */
        mutex_lock(&ops->reg_mutex);
        ops->driver |= DRIVER_LOCKED; /* do not remove this driver recursively */
-       list_for_each(head, &ops->dev_list) {
-               struct snd_seq_device *dev = list_entry(head, struct snd_seq_device, list);
+       list_for_each_entry(dev, &ops->dev_list, list) {
                free_device(dev, ops);
        }
 
@@ -512,11 +508,10 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops)
  */
 static struct ops_list * find_driver(char *id, int create_if_empty)
 {
-       struct list_head *head;
+       struct ops_list *ops;
 
        mutex_lock(&ops_mutex);
-       list_for_each(head, &opslist) {
-               struct ops_list *ops = list_entry(head, struct ops_list, list);
+       list_for_each_entry(ops, &opslist, list) {
                if (strcmp(ops->id, id) == 0) {
                        ops->used++;
                        mutex_unlock(&ops_mutex);
index 8c64b58..d881534 100644 (file)
@@ -59,14 +59,12 @@ much elements are in array.
 struct snd_seq_client_port *snd_seq_port_use_ptr(struct snd_seq_client *client,
                                                 int num)
 {
-       struct list_head *p;
        struct snd_seq_client_port *port;
 
        if (client == NULL)
                return NULL;
        read_lock(&client->ports_lock);
-       list_for_each(p, &client->ports_list_head) {
-               port = list_entry(p, struct snd_seq_client_port, list);
+       list_for_each_entry(port, &client->ports_list_head, list) {
                if (port->addr.port == num) {
                        if (port->closing)
                                break; /* deleting now */
@@ -85,14 +83,12 @@ struct snd_seq_client_port *snd_seq_port_query_nearest(struct snd_seq_client *cl
                                                       struct snd_seq_port_info *pinfo)
 {
        int num;
-       struct list_head *p;
        struct snd_seq_client_port *port, *found;
 
        num = pinfo->addr.port;
        found = NULL;
        read_lock(&client->ports_lock);
-       list_for_each(p, &client->ports_list_head) {
-               port = list_entry(p, struct snd_seq_client_port, list);
+       list_for_each_entry(port, &client->ports_list_head, list) {
                if (port->addr.port < num)
                        continue;
                if (port->addr.port == num) {
@@ -131,8 +127,7 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
                                                int port)
 {
        unsigned long flags;
-       struct snd_seq_client_port *new_port;
-       struct list_head *l;
+       struct snd_seq_client_port *new_port, *p;
        int num = -1;
        
        /* sanity check */
@@ -161,15 +156,14 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
        num = port >= 0 ? port : 0;
        mutex_lock(&client->ports_mutex);
        write_lock_irqsave(&client->ports_lock, flags);
-       list_for_each(l, &client->ports_list_head) {
-               struct snd_seq_client_port *p = list_entry(l, struct snd_seq_client_port, list);
+       list_for_each_entry(p, &client->ports_list_head, list) {
                if (p->addr.port > num)
                        break;
                if (port < 0) /* auto-probe mode */
                        num = p->addr.port + 1;
        }
        /* insert the new port */
-       list_add_tail(&new_port->list, l);
+       list_add_tail(&new_port->list, &p->list);
        client->num_ports++;
        new_port->addr.port = num;      /* store the port number in the port */
        write_unlock_irqrestore(&client->ports_lock, flags);
@@ -287,16 +281,14 @@ static int port_delete(struct snd_seq_client *client,
 int snd_seq_delete_port(struct snd_seq_client *client, int port)
 {
        unsigned long flags;
-       struct list_head *l;
-       struct snd_seq_client_port *found = NULL;
+       struct snd_seq_client_port *found = NULL, *p;
 
        mutex_lock(&client->ports_mutex);
        write_lock_irqsave(&client->ports_lock, flags);
-       list_for_each(l, &client->ports_list_head) {
-               struct snd_seq_client_port *p = list_entry(l, struct snd_seq_client_port, list);
+       list_for_each_entry(p, &client->ports_list_head, list) {
                if (p->addr.port == port) {
                        /* ok found.  delete from the list at first */
-                       list_del(l);
+                       list_del(&p->list);
                        client->num_ports--;
                        found = p;
                        break;
@@ -314,7 +306,8 @@ int snd_seq_delete_port(struct snd_seq_client *client, int port)
 int snd_seq_delete_all_ports(struct snd_seq_client *client)
 {
        unsigned long flags;
-       struct list_head deleted_list, *p, *n;
+       struct list_head deleted_list;
+       struct snd_seq_client_port *port, *tmp;
        
        /* move the port list to deleted_list, and
         * clear the port list in the client data.
@@ -331,9 +324,8 @@ int snd_seq_delete_all_ports(struct snd_seq_client *client)
        write_unlock_irqrestore(&client->ports_lock, flags);
 
        /* remove each port in deleted_list */
-       list_for_each_safe(p, n, &deleted_list) {
-               struct snd_seq_client_port *port = list_entry(p, struct snd_seq_client_port, list);
-               list_del(p);
+       list_for_each_entry_safe(port, tmp, &deleted_list, list) {
+               list_del(&port->list);
                snd_seq_system_client_ev_port_exit(port->addr.client, port->addr.port);
                port_delete(client, port);
        }
@@ -500,8 +492,7 @@ int snd_seq_port_connect(struct snd_seq_client *connector,
 {
        struct snd_seq_port_subs_info *src = &src_port->c_src;
        struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
-       struct snd_seq_subscribers *subs;
-       struct list_head *p;
+       struct snd_seq_subscribers *subs, *s;
        int err, src_called = 0;
        unsigned long flags;
        int exclusive;
@@ -525,13 +516,11 @@ int snd_seq_port_connect(struct snd_seq_client *connector,
                if (src->exclusive || dest->exclusive)
                        goto __error;
                /* check whether already exists */
-               list_for_each(p, &src->list_head) {
-                       struct snd_seq_subscribers *s = list_entry(p, struct snd_seq_subscribers, src_list);
+               list_for_each_entry(s, &src->list_head, src_list) {
                        if (match_subs_info(info, &s->info))
                                goto __error;
                }
-               list_for_each(p, &dest->list_head) {
-                       struct snd_seq_subscribers *s = list_entry(p, struct snd_seq_subscribers, dest_list);
+               list_for_each_entry(s, &dest->list_head, dest_list) {
                        if (match_subs_info(info, &s->info))
                                goto __error;
                }
@@ -582,7 +571,6 @@ int snd_seq_port_disconnect(struct snd_seq_client *connector,
        struct snd_seq_port_subs_info *src = &src_port->c_src;
        struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
        struct snd_seq_subscribers *subs;
-       struct list_head *p;
        int err = -ENOENT;
        unsigned long flags;
 
@@ -590,8 +578,7 @@ int snd_seq_port_disconnect(struct snd_seq_client *connector,
        down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING);
 
        /* look for the connection */
-       list_for_each(p, &src->list_head) {
-               subs = list_entry(p, struct snd_seq_subscribers, src_list);
+       list_for_each_entry(subs, &src->list_head, src_list) {
                if (match_subs_info(info, &subs->info)) {
                        write_lock_irqsave(&src->list_lock, flags);
                        // write_lock(&dest->list_lock);  // no lock yet
@@ -620,12 +607,10 @@ int snd_seq_port_disconnect(struct snd_seq_client *connector,
 struct snd_seq_subscribers *snd_seq_port_get_subscription(struct snd_seq_port_subs_info *src_grp,
                                                          struct snd_seq_addr *dest_addr)
 {
-       struct list_head *p;
        struct snd_seq_subscribers *s, *found = NULL;
 
        down_read(&src_grp->list_mutex);
-       list_for_each(p, &src_grp->list_head) {
-               s = list_entry(p, struct snd_seq_subscribers, src_list);
+       list_for_each_entry(s, &src_grp->list_head, src_list) {
                if (addr_match(dest_addr, &s->info.dest)) {
                        found = s;
                        break;
index 0cfa06c..972f934 100644 (file)
@@ -81,13 +81,11 @@ static int snd_virmidi_dev_receive_event(struct snd_virmidi_dev *rdev,
                                         struct snd_seq_event *ev)
 {
        struct snd_virmidi *vmidi;
-       struct list_head *list;
        unsigned char msg[4];
        int len;
 
        read_lock(&rdev->filelist_lock);
-       list_for_each(list, &rdev->filelist) {
-               vmidi = list_entry(list, struct snd_virmidi, list);
+       list_for_each_entry(vmidi, &rdev->filelist, list) {
                if (!vmidi->trigger)
                        continue;
                if (ev->type == SNDRV_SEQ_EVENT_SYSEX) {
index 10a79ae..4e79f9c 100644 (file)
@@ -130,11 +130,8 @@ static struct snd_timer_instance *snd_timer_instance_new(char *owner,
 static struct snd_timer *snd_timer_find(struct snd_timer_id *tid)
 {
        struct snd_timer *timer = NULL;
-       struct list_head *p;
-
-       list_for_each(p, &snd_timer_list) {
-               timer = list_entry(p, struct snd_timer, device_list);
 
+       list_for_each_entry(timer, &snd_timer_list, device_list) {
                if (timer->tmr_class != tid->dev_class)
                        continue;
                if ((timer->tmr_class == SNDRV_TIMER_CLASS_CARD ||
@@ -184,13 +181,10 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave)
 {
        struct snd_timer *timer;
        struct snd_timer_instance *master;
-       struct list_head *p, *q;
 
        /* FIXME: it's really dumb to look up all entries.. */
-       list_for_each(p, &snd_timer_list) {
-               timer = list_entry(p, struct snd_timer, device_list);
-               list_for_each(q, &timer->open_list_head) {
-                       master = list_entry(q, struct snd_timer_instance, open_list);
+       list_for_each_entry(timer, &snd_timer_list, device_list) {
+               list_for_each_entry(master, &timer->open_list_head, open_list) {
                        if (slave->slave_class == master->slave_class &&
                            slave->slave_id == master->slave_id) {
                                list_del(&slave->open_list);
@@ -214,16 +208,13 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave)
  */
 static void snd_timer_check_master(struct snd_timer_instance *master)
 {
-       struct snd_timer_instance *slave;
-       struct list_head *p, *n;
+       struct snd_timer_instance *slave, *tmp;
 
        /* check all pending slaves */
-       list_for_each_safe(p, n, &snd_timer_slave_list) {
-               slave = list_entry(p, struct snd_timer_instance, open_list);
+       list_for_each_entry_safe(slave, tmp, &snd_timer_slave_list, open_list) {
                if (slave->slave_class == master->slave_class &&
                    slave->slave_id == master->slave_id) {
-                       list_del(p);
-                       list_add_tail(p, &master->slave_list_head);
+                       list_move_tail(&slave->open_list, &master->slave_list_head);
                        spin_lock_irq(&slave_active_lock);
                        slave->master = master;
                        slave->timer = master->timer;
@@ -317,8 +308,7 @@ static int _snd_timer_stop(struct snd_timer_instance *timeri,
 int snd_timer_close(struct snd_timer_instance *timeri)
 {
        struct snd_timer *timer = NULL;
-       struct list_head *p, *n;
-       struct snd_timer_instance *slave;
+       struct snd_timer_instance *slave, *tmp;
 
        snd_assert(timeri != NULL, return -ENXIO);
 
@@ -353,12 +343,11 @@ int snd_timer_close(struct snd_timer_instance *timeri)
                    timer->hw.close)
                        timer->hw.close(timer);
                /* remove slave links */
-               list_for_each_safe(p, n, &timeri->slave_list_head) {
-                       slave = list_entry(p, struct snd_timer_instance, open_list);
+               list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head,
+                                        open_list) {
                        spin_lock_irq(&slave_active_lock);
                        _snd_timer_stop(slave, 1, SNDRV_TIMER_EVENT_RESOLUTION);
-                       list_del(p);
-                       list_add_tail(p, &snd_timer_slave_list);
+                       list_move_tail(&slave->open_list, &snd_timer_slave_list);
                        slave->master = NULL;
                        slave->timer = NULL;
                        spin_unlock_irq(&slave_active_lock);
@@ -394,7 +383,6 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event)
        unsigned long flags;
        unsigned long resolution = 0;
        struct snd_timer_instance *ts;
-       struct list_head *n;
        struct timespec tstamp;
 
        getnstimeofday(&tstamp);
@@ -413,11 +401,9 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event)
        if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)
                return;
        spin_lock_irqsave(&timer->lock, flags);
-       list_for_each(n, &ti->slave_active_head) {
-               ts = list_entry(n, struct snd_timer_instance, active_list);
+       list_for_each_entry(ts, &ti->slave_active_head, active_list)
                if (ts->ccallback)
                        ts->ccallback(ti, event + 100, &tstamp, resolution);
-       }
        spin_unlock_irqrestore(&timer->lock, flags);
 }
 
@@ -593,10 +579,8 @@ static void snd_timer_reschedule(struct snd_timer * timer, unsigned long ticks_l
 {
        struct snd_timer_instance *ti;
        unsigned long ticks = ~0UL;
-       struct list_head *p;
 
-       list_for_each(p, &timer->active_list_head) {
-               ti = list_entry(p, struct snd_timer_instance, active_list);
+       list_for_each_entry(ti, &timer->active_list_head, active_list) {
                if (ti->flags & SNDRV_TIMER_IFLG_START) {
                        ti->flags &= ~SNDRV_TIMER_IFLG_START;
                        ti->flags |= SNDRV_TIMER_IFLG_RUNNING;
@@ -661,9 +645,9 @@ static void snd_timer_tasklet(unsigned long arg)
  */
 void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
 {
-       struct snd_timer_instance *ti, *ts;
+       struct snd_timer_instance *ti, *ts, *tmp;
        unsigned long resolution, ticks;
-       struct list_head *p, *q, *n, *ack_list_head;
+       struct list_head *p, *ack_list_head;
        unsigned long flags;
        int use_tasklet = 0;
 
@@ -679,12 +663,12 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
                resolution = timer->hw.resolution;
 
        /* loop for all active instances
-        * Here we cannot use list_for_each because the active_list of a
+        * Here we cannot use list_for_each_entry because the active_list of a
         * processed instance is relinked to done_list_head before the callback
         * is called.
         */
-       list_for_each_safe(p, n, &timer->active_list_head) {
-               ti = list_entry(p, struct snd_timer_instance, active_list);
+       list_for_each_entry_safe(ti, tmp, &timer->active_list_head,
+                                active_list) {
                if (!(ti->flags & SNDRV_TIMER_IFLG_RUNNING))
                        continue;
                ti->pticks += ticks_left;
@@ -700,7 +684,7 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
                } else {
                        ti->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
                        if (--timer->running)
-                               list_del(p);
+                               list_del(&ti->active_list);
                }
                if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
                    (ti->flags & SNDRV_TIMER_IFLG_FAST))
@@ -709,8 +693,7 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
                        ack_list_head = &timer->sack_list_head;
                if (list_empty(&ti->ack_list))
                        list_add_tail(&ti->ack_list, ack_list_head);
-               list_for_each(q, &ti->slave_active_head) {
-                       ts = list_entry(q, struct snd_timer_instance, active_list);
+               list_for_each_entry(ts, &ti->slave_active_head, active_list) {
                        ts->pticks = ti->pticks;
                        ts->resolution = resolution;
                        if (list_empty(&ts->ack_list))
@@ -844,7 +827,6 @@ static int snd_timer_dev_register(struct snd_device *dev)
 {
        struct snd_timer *timer = dev->device_data;
        struct snd_timer *timer1;
-       struct list_head *p;
 
        snd_assert(timer != NULL && timer->hw.start != NULL &&
                   timer->hw.stop != NULL, return -ENXIO);
@@ -853,8 +835,7 @@ static int snd_timer_dev_register(struct snd_device *dev)
                return -EINVAL;
 
        mutex_lock(&register_mutex);
-       list_for_each(p, &snd_timer_list) {
-               timer1 = list_entry(p, struct snd_timer, device_list);
+       list_for_each_entry(timer1, &snd_timer_list, device_list) {
                if (timer1->tmr_class > timer->tmr_class)
                        break;
                if (timer1->tmr_class < timer->tmr_class)
@@ -877,7 +858,7 @@ static int snd_timer_dev_register(struct snd_device *dev)
                mutex_unlock(&register_mutex);
                return -EBUSY;
        }
-       list_add_tail(&timer->device_list, p);
+       list_add_tail(&timer->device_list, &timer1->device_list);
        mutex_unlock(&register_mutex);
        return 0;
 }
@@ -896,7 +877,6 @@ void snd_timer_notify(struct snd_timer *timer, int event, struct timespec *tstam
        unsigned long flags;
        unsigned long resolution = 0;
        struct snd_timer_instance *ti, *ts;
-       struct list_head *p, *n;
 
        if (! (timer->hw.flags & SNDRV_TIMER_HW_SLAVE))
                return;
@@ -911,15 +891,12 @@ void snd_timer_notify(struct snd_timer *timer, int event, struct timespec *tstam
                else
                        resolution = timer->hw.resolution;
        }
-       list_for_each(p, &timer->active_list_head) {
-               ti = list_entry(p, struct snd_timer_instance, active_list);
+       list_for_each_entry(ti, &timer->active_list_head, active_list) {
                if (ti->ccallback)
                        ti->ccallback(ti, event, tstamp, resolution);
-               list_for_each(n, &ti->slave_active_head) {
-                       ts = list_entry(n, struct snd_timer_instance, active_list);
+               list_for_each_entry(ts, &ti->slave_active_head, active_list)
                        if (ts->ccallback)
                                ts->ccallback(ts, event, tstamp, resolution);
-               }
        }
        spin_unlock_irqrestore(&timer->lock, flags);
 }
@@ -1057,11 +1034,9 @@ static void snd_timer_proc_read(struct snd_info_entry *entry,
 {
        struct snd_timer *timer;
        struct snd_timer_instance *ti;
-       struct list_head *p, *q;
 
        mutex_lock(&register_mutex);
-       list_for_each(p, &snd_timer_list) {
-               timer = list_entry(p, struct snd_timer, device_list);
+       list_for_each_entry(timer, &snd_timer_list, device_list) {
                switch (timer->tmr_class) {
                case SNDRV_TIMER_CLASS_GLOBAL:
                        snd_iprintf(buffer, "G%i: ", timer->tmr_device);
@@ -1088,14 +1063,12 @@ static void snd_timer_proc_read(struct snd_info_entry *entry,
                if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)
                        snd_iprintf(buffer, " SLAVE");
                snd_iprintf(buffer, "\n");
-               list_for_each(q, &timer->open_list_head) {
-                       ti = list_entry(q, struct snd_timer_instance, open_list);
+               list_for_each_entry(ti, &timer->open_list_head, open_list)
                        snd_iprintf(buffer, "  Client %s : %s\n",
                                    ti->owner ? ti->owner : "unknown",
                                    ti->flags & (SNDRV_TIMER_IFLG_START |
                                                 SNDRV_TIMER_IFLG_RUNNING)
                                    ? "running" : "stopped");
-               }
        }
        mutex_unlock(&register_mutex);
 }