* [PATCH] ALSA: mtpav: restore negation dropped in guard() conversion
@ 2026-10-20 9:09 Wang Yan
0 siblings, 0 replies; only message in thread
From: Wang Yan @ 2026-10-20 9:09 UTC (permalink / raw)
To: perex, tiwai; +Cc: wangyan01, runyu.xiao, linux-sound, linux-kernel
commit 316e0074ecdc ("ALSA: mtpav: Use guard() for spin locks")
claims to be "Merely code refactoring, and no behavior change", but
it accidentally dropped the "!" from
if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED))
in snd_mtpav_output_trigger().
Restore the negation.
Signed-off-by: Wang Yan <wangyan01@kylinos.cn>
---
sound/drivers/mtpav.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/drivers/mtpav.c b/sound/drivers/mtpav.c
index 1ed6d4f0cb62..288a873a27e6 100644
--- a/sound/drivers/mtpav.c
+++ b/sound/drivers/mtpav.c
@@ -443,7 +443,7 @@ static void snd_mtpav_output_trigger(struct snd_rawmidi_substream *substream, in
scoped_guard(spinlock_irqsave, &mtp_card->spinlock) {
if (up) {
- if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) {
+ if (!(portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) {
if (mtp_card->istimer++ == 0)
snd_mtpav_add_output_timer(mtp_card);
portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED;
--
2.25.1
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