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@xxxxxxxxxxxxx/ Fixes: 3f0638a0333b ("ALSA: control - add layer registration routines") Signed-off-by: Jaroslav Kysela <perex@xxxxxxxx> --- 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
