From: Jaroslav Kysela <perex@perex.cz>
To: ALSA development <alsa-devel@alsa-project.org>
Cc: Takashi Iwai <tiwai@suse.de>
Subject: [PATCH] ALSA: control - add the missing prev_lops2 initialization
Date: Wed, 31 Mar 2021 20:07:02 +0200 [thread overview]
Message-ID: <20210331180702.663489-1-perex@perex.cz> (raw)
As static analysis reported, the prev_lops2 should contain
the previous lops2 pointer in snd_ctl_disconnect_layer().
Link: https://lore.kernel.org/alsa-devel/96e9bd5c-c8db-0db8-b393-fbf4a047dc80@canonical.com/
Fixes: 3f0638a0333b ("ALSA: control - add layer registration routines")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
sound/core/control.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/core/control.c b/sound/core/control.c
index 6825ca75daf5..20d707d4ef40 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -2074,7 +2074,7 @@ void snd_ctl_disconnect_layer(struct snd_ctl_layer_ops *lops)
struct snd_ctl_layer_ops *lops2, *prev_lops2;
down_write(&snd_ctl_layer_rwsem);
- for (lops2 = snd_ctl_layer, prev_lops2 = NULL; lops2; lops2 = lops2->next)
+ for (lops2 = snd_ctl_layer, prev_lops2 = NULL; lops2; lops2 = lops2->next) {
if (lops2 == lops) {
if (!prev_lops2)
snd_ctl_layer = lops->next;
@@ -2082,6 +2082,8 @@ void snd_ctl_disconnect_layer(struct snd_ctl_layer_ops *lops)
prev_lops2->next = lops->next;
break;
}
+ prev_lops2 = lops2;
+ }
up_write(&snd_ctl_layer_rwsem);
}
EXPORT_SYMBOL_GPL(snd_ctl_disconnect_layer);
--
2.30.2
next reply other threads:[~2021-03-31 18:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-31 18:07 Jaroslav Kysela [this message]
2021-04-01 8:06 ` [PATCH] ALSA: control - add the missing prev_lops2 initialization Takashi Iwai
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