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ALSA: caiaq: input: Add error handling for unsupported input methods in snd_usb_caiaq_input_init

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Smatch complains that:
snd_usb_caiaq_input_init() warn: missing error code 'ret'

This patch adds a new case to handle the situation where the
device does not support any input methods in the
`snd_usb_caiaq_input_init` function. It returns an `-EINVAL` error code
to indicate that no input methods are supported on the device.

Fixes: 523f1dce3743 ("[ALSA] Add Native Instrument usb audio device support")
Signed-off-by: Ruliang Lin <u202112092@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Acked-by: Daniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20230504065054.3309-1-u202112092@hust.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Ruliang Lin 2023-05-04 14:50:53 +08:00 committed by Takashi Iwai
parent 7501f47297
commit 0d727e1856
1 changed files with 1 additions and 0 deletions
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1
sound/usb/caiaq/input.c
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@ -804,6 +804,7 @@ int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *cdev)
default:
/* no input methods supported on this device */
ret = -EINVAL;
goto exit_free_idev;
}