ALSA: hda - Fix krealloc() replacement in hda_codec.c
Takashi Iwai [Thu, 14 Jul 2011 13:57:27 +0000 (15:57 +0200)]
It was obviously wrong, grr....

Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_codec.c

index 4afc6fc..f26e487 100644 (file)
@@ -4958,13 +4958,14 @@ void *snd_array_new(struct snd_array *array)
        if (array->used >= array->alloced) {
                int num = array->alloced + array->alloc_align;
                int size = (num + 1) * array->elem_size;
+               int oldsize = array->alloced * array->elem_size;
                void *nlist;
                if (snd_BUG_ON(num >= 4096))
                        return NULL;
                nlist = krealloc(array->list, size, GFP_KERNEL);
                if (!nlist)
                        return NULL;
-               memset(nlist, 0, size - array->alloced * array->elem_size);
+               memset(nlist + oldsize, 0, size - oldsize);
                array->list = nlist;
                array->alloced = num;
        }