[PATCH AUTOSEL 4.14 171/371] ALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk()

From: Sasha Levin
Date: Thu Jan 16 2020 - 13:26:59 EST


From: Takashi Iwai <tiwai@xxxxxxx>

[ Upstream commit 328e9f6973be2ee67862cb17bf6c0c5c5918cd72 ]

The error from snd_usb_mixer_apply_create_quirk() is ignored in the
current usb-audio driver code, which will continue the probing even
after the error. Let's take it more serious.

Fixes: 7b1eda223deb ("ALSA: usb-mixer: factor out quirks")
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/usb/mixer.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 044193b2364d..e6e4c3b9d9d3 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -2632,7 +2632,9 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
(err = snd_usb_mixer_status_create(mixer)) < 0)
goto _error;

- snd_usb_mixer_apply_create_quirk(mixer);
+ err = snd_usb_mixer_apply_create_quirk(mixer);
+ if (err < 0)
+ goto _error;

err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops);
if (err < 0)
--
2.20.1