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ALSA: usb-audio: Return meaningful error codes instead of -1 in format.c 

Also, silences the following smatch warning:
sound/usb/format.c:170 parse_audio_format_rates_v1() warn:
returning -1 instead of -ENOMEM is sloppy

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Sachin Kamat 2012-11-21 15:25:56 +05:30 committed by Takashi Iwai
parent 27b2a22c71
commit 8ad10dc6d3
1 changed files with 5 additions and 5 deletions
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10
sound/usb/format.c
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@ -155,7 +155,7 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof
if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) {
snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_FORMAT_TYPE desc\n",
chip->dev->devnum, fp->iface, fp->altsetting);
return -1;
return -EINVAL;
}
if (nr_rates) {
@ -167,7 +167,7 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof
fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL);
if (fp->rate_table == NULL) {
snd_printk(KERN_ERR "cannot malloc\n");
return -1;
return -ENOMEM;
}
fp->nr_rates = 0;
@ -198,7 +198,7 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof
}
if (!fp->nr_rates) {
hwc_debug("All rates were zero. Skipping format!\n");
return -1;
return -EINVAL;
}
} else {
/* continuous rates */
@ -383,7 +383,7 @@ static int parse_audio_format_i(struct snd_usb_audio *chip,
fp->formats = parse_audio_format_i_type(chip, fp, format,
fmt, protocol);
if (!fp->formats)
return -1;
return -EINVAL;
}
/* gather possible sample rates */
@ -409,7 +409,7 @@ static int parse_audio_format_i(struct snd_usb_audio *chip,
if (fp->channels < 1) {
snd_printk(KERN_ERR "%d:%u:%d : invalid channels %d\n",
chip->dev->devnum, fp->iface, fp->altsetting, fp->channels);
return -1;
return -EINVAL;
}
return ret;