5.15-stable review patch. If anyone has any objections, please let me know.
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From: Geoffrey D. Bennett g@b4.vu
[ Upstream commit ca459dfa7d4ed9098fcf13e410963be6ae9b6bf3 ]
scarlett2_usb_set_config() calls scarlett2_usb_get() but was not checking the result. Return the error if it fails rather than continuing with an invalid value.
Signed-off-by: Geoffrey D. Bennett g@b4.vu Fixes: 9e15fae6c51a ("ALSA: usb-audio: scarlett2: Allow bit-level access to config") Link: https://lore.kernel.org/r/def110c5c31dbdf0a7414d258838a0a31c0fab67.170300105... Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- sound/usb/mixer_scarlett_gen2.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index 6e79872e68c4..f8787a4b1e13 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -1266,7 +1266,10 @@ static int scarlett2_usb_set_config( size = 1; offset = config_item->offset;
- scarlett2_usb_get(mixer, offset, &tmp, 1); + err = scarlett2_usb_get(mixer, offset, &tmp, 1); + if (err < 0) + return err; + if (value) tmp |= (1 << index); else