From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 21 Jun 2006 14:37:54 +0000 (+0200)
Subject: [ALSA] Remove nested mutexes in seq_ports.c
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=45df379798b5c3b2ea937735ef04c58ce0f532a7;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[ALSA] Remove nested mutexes in seq_ports.c

Removed nested mutexes in the removal routine of port connections.
The port is guaranteed to be offline before calling it, so no mutex
is needed.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c
index 5f46ee9e2174..334579a9f268 100644
--- a/sound/core/seq/seq_ports.c
+++ b/sound/core/seq/seq_ports.c
@@ -221,7 +221,6 @@ static void clear_subscriber_list(struct snd_seq_client *client,
 {
 	struct list_head *p, *n;
 
-	down_write(&grp->list_mutex);
 	list_for_each_safe(p, n, &grp->list_head) {
 		struct snd_seq_subscribers *subs;
 		struct snd_seq_client *c;
@@ -259,7 +258,6 @@ static void clear_subscriber_list(struct snd_seq_client *client,
 			snd_seq_client_unlock(c);
 		}
 	}
-	up_write(&grp->list_mutex);
 }
 
 /* delete port data */