| Message ID | 20230504065054.3309-1-u202112092@hust.edu.cn |
|---|---|
| State | New |
| Headers | show |
| Series | sound: caiaq: input: Add error handling for unsupported input methods in `snd_usb_caiaq_input_init` | expand |
diff --git a/sound/usb/caiaq/input.c b/sound/usb/caiaq/input.c index 1e2cf2f08eec..84f26dce7f5d 100644 --- a/sound/usb/caiaq/input.c +++ b/sound/usb/caiaq/input.c @@ -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; }
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> --- The issue is found by static analyzer. The patched code has passed Smatch checker, but remains untested on real device. --- sound/usb/caiaq/input.c | 1 + 1 file changed, 1 insertion(+)