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authorTakashi Iwai <tiwai@suse.de>2006-03-21 16:07:13 +0100
committerJaroslav Kysela <perex@suse.cz>2006-03-22 10:43:56 +0100
commitc6077b3000184c7f69c4798b9025e5fbd69c8c62 (patch)
tree7ba83932972197bc4f2fd2c29cf5448fc34c2d26 /sound/core
parent[ALSA] AMD Au1x00: AC'97 controller is memory mapped (diff)
downloadlinux-dev-c6077b3000184c7f69c4798b9025e5fbd69c8c62.tar.xz
linux-dev-c6077b3000184c7f69c4798b9025e5fbd69c8c62.zip
[ALSA] Fix memory leaks in error path of control.c
Modules: Control Midlevel Fix memory leaks in error path of control.c (only with CONFIG_SND_DEBUG=y). Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/control.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/sound/core/control.c b/sound/core/control.c
index 9742bdba0de1..574745314e70 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -309,28 +309,29 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
{
struct snd_ctl_elem_id id;
unsigned int idx;
+ int err = -EINVAL;
- snd_assert(card != NULL, return -EINVAL);
if (! kcontrol)
- return -EINVAL;
- snd_assert(kcontrol->info != NULL, return -EINVAL);
+ return err;
+ snd_assert(card != NULL, goto error);
+ snd_assert(kcontrol->info != NULL, goto error);
id = kcontrol->id;
down_write(&card->controls_rwsem);
if (snd_ctl_find_id(card, &id)) {
up_write(&card->controls_rwsem);
- snd_ctl_free_one(kcontrol);
snd_printd(KERN_ERR "control %i:%i:%i:%s:%i is already present\n",
id.iface,
id.device,
id.subdevice,
id.name,
id.index);
- return -EBUSY;
+ err = -EBUSY;
+ goto error;
}
if (snd_ctl_find_hole(card, kcontrol->count) < 0) {
up_write(&card->controls_rwsem);
- snd_ctl_free_one(kcontrol);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto error;
}
list_add_tail(&kcontrol->list, &card->controls);
card->controls_count += kcontrol->count;
@@ -340,6 +341,10 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
return 0;
+
+ error:
+ snd_ctl_free_one(kcontrol);
+ return err;
}
/**