From: chunxu.li <chunxuxiao@gmail.com>
Date: Mon, 27 Apr 2020 13:27:42 +0000 (+0800)
Subject: pcm: Fix memory leak at snd_pcm_new when THREAD_SAVE_API is defined
X-Git-Tag: v1.2.3~4
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=515b336801b3ad1838723e2084683f09eeccfb23;p=alsa-lib.git

pcm: Fix memory leak at snd_pcm_new when THREAD_SAVE_API is defined

The pthread_mutexattr_t object should be destroyed by calling
pthread_mutexattr_destroy(), otherwise it may cause a potential
memory leak due to the different implement of pthread_mutexattr_init()

Signed-off-by: chunxu.li <chunxuxiao@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c
index eb8f686d..06a48f4c 100644
--- a/src/pcm/pcm.c
+++ b/src/pcm/pcm.c
@@ -2763,6 +2763,7 @@ int snd_pcm_new(snd_pcm_t **pcmp, snd_pcm_type_t type, const char *name,
 	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
 #endif
 	pthread_mutex_init(&pcm->lock, &attr);
+	pthread_mutexattr_destroy(&attr);
 	/* use locking as default;
 	 * each plugin may suppress this in its open call
 	 */