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| author | Takashi Iwai <tiwai@suse.de> | 2005-11-17 17:44:01 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-01-03 12:28:58 +0100 |
| commit | 73e77ba0235532bd7523ba90883d325f6e095acf (patch) | |
| tree | d22f29805ade9e78bd5f1802590d42f6e121c3c1 /sound/core/control.c | |
| parent | 00a4e3d9f8df8a90966b75d517154718b4a2242a (diff) | |
| download | linux-73e77ba0235532bd7523ba90883d325f6e095acf.tar.gz linux-73e77ba0235532bd7523ba90883d325f6e095acf.tar.bz2 linux-73e77ba0235532bd7523ba90883d325f6e095acf.zip | |
[ALSA] Add error messages
Add error messages in the critial error path to be more verbose.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/control.c')
| -rw-r--r-- | sound/core/control.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index 03ae9bb7d38e..f8f98cc52417 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -195,8 +195,10 @@ struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control, unsigned int acce snd_assert(control != NULL, return NULL); snd_assert(control->count > 0, return NULL); kctl = kzalloc(sizeof(*kctl) + sizeof(struct snd_kcontrol_volatile) * control->count, GFP_KERNEL); - if (kctl == NULL) + if (kctl == NULL) { + snd_printk(KERN_ERR "Cannot allocate control instance\n"); return NULL; + } *kctl = *control; for (idx = 0; idx < kctl->count; idx++) kctl->vd[idx].access = access; @@ -309,7 +311,9 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol) struct snd_ctl_elem_id id; unsigned int idx; - snd_assert(card != NULL && kcontrol != NULL, return -EINVAL); + snd_assert(card != NULL, return -EINVAL); + if (! kcontrol) + return -EINVAL; snd_assert(kcontrol->info != NULL, return -EINVAL); id = kcontrol->id; down_write(&card->controls_rwsem); |