ALSA: compress: fix the return value for SNDRV_COMPRESS_VERSION
[linux-2.6.git] / sound / core / timer.c
index 7c1cbf0..6ddcf06 100644 (file)
@@ -24,7 +24,8 @@
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/mutex.h>
-#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/module.h>
 #include <linux/string.h>
 #include <sound/core.h>
 #include <sound/timer.h>
@@ -328,6 +329,8 @@ int snd_timer_close(struct snd_timer_instance *timeri)
                mutex_unlock(&register_mutex);
        } else {
                timer = timeri->timer;
+               if (snd_BUG_ON(!timer))
+                       goto out;
                /* wait, until the active callback is finished */
                spin_lock_irq(&timer->lock);
                while (timeri->flags & SNDRV_TIMER_IFLG_CALLBACK) {
@@ -353,6 +356,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
                }
                mutex_unlock(&register_mutex);
        }
+ out:
        if (timeri->private_free)
                timeri->private_free(timeri);
        kfree(timeri->owner);
@@ -531,6 +535,8 @@ int snd_timer_stop(struct snd_timer_instance *timeri)
        if (err < 0)
                return err;
        timer = timeri->timer;
+       if (!timer)
+               return -EINVAL;
        spin_lock_irqsave(&timer->lock, flags);
        timeri->cticks = timeri->ticks;
        timeri->pticks = 0;