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[ALSA] Add error messages

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Add error messages in the critial error path to be more verbose.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2005-11-17 17:44:01 +01:00
committed by Jaroslav Kysela
parent 00a4e3d9f8
commit 73e77ba023
9 changed files with 66 additions and 24 deletions
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16
sound/core/pcm.c
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@@ -600,14 +600,18 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
pstr->reg = &snd_pcm_reg[stream];
if (substream_count > 0) {
err = snd_pcm_stream_proc_init(pstr);
if (err < 0)
if (err < 0) {
snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n");
return err;
}
}
prev = NULL;
for (idx = 0, prev = NULL; idx < substream_count; idx++) {
substream = kzalloc(sizeof(*substream), GFP_KERNEL);
if (substream == NULL)
if (substream == NULL) {
snd_printk(KERN_ERR "Cannot allocate PCM substream\n");
return -ENOMEM;
}
substream->pcm = pcm;
substream->pstr = pstr;
substream->number = idx;
@@ -620,6 +624,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
prev->next = substream;
err = snd_pcm_substream_proc_init(substream);
if (err < 0) {
snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n");
kfree(substream);
return err;
}
@@ -666,13 +671,14 @@ int snd_pcm_new(struct snd_card *card, char *id, int device,
*rpcm = NULL;
snd_assert(card != NULL, return -ENXIO);
pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
if (pcm == NULL)
if (pcm == NULL) {
snd_printk(KERN_ERR "Cannot allocate PCM\n");
return -ENOMEM;
}
pcm->card = card;
pcm->device = device;
if (id) {
if (id)
strlcpy(pcm->id, id, sizeof(pcm->id));
}
if ((err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_PLAYBACK, playback_count)) < 0) {
snd_pcm_free(pcm);
return err;