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| author | Takashi Iwai <tiwai@suse.de> | 2016-03-15 12:14:49 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2016-03-16 12:43:27 +0100 |
| commit | 902eb7fd1e4af3ac69b9b30f8373f118c92b9729 (patch) | |
| tree | d030a81b7163509482304b60f1cf5e2d7160d1b5 /sound/usb | |
| parent | ALSA: usb-audio: Fix NULL dereference in create_fixed_stream_quirk() (diff) | |
| download | linux-902eb7fd1e4af3ac69b9b30f8373f118c92b9729.tar.xz linux-902eb7fd1e4af3ac69b9b30f8373f118c92b9729.zip | |
ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk()
Just a minor code cleanup: unify the error paths.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/quirks.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 529c35cceaa6..a889d433cbdf 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -167,23 +167,18 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip, stream = (fp->endpoint & USB_DIR_IN) ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; err = snd_usb_add_audio_stream(chip, stream, fp); - if (err < 0) { - kfree(fp); - kfree(rate_table); - return err; - } + if (err < 0) + goto error; if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber || fp->altset_idx >= iface->num_altsetting) { - kfree(fp); - kfree(rate_table); - return -EINVAL; + err = -EINVAL; + goto error; } alts = &iface->altsetting[fp->altset_idx]; altsd = get_iface_desc(alts); if (altsd->bNumEndpoints < 1) { - kfree(fp); - kfree(rate_table); - return -EINVAL; + err = -EINVAL; + goto error; } fp->protocol = altsd->bInterfaceProtocol; @@ -196,6 +191,11 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip, snd_usb_init_pitch(chip, fp->iface, alts, fp); snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max); return 0; + + error: + kfree(fp); + kfree(rate_table); + return err; } static int create_auto_pcm_quirk(struct snd_usb_audio *chip, |