From: Guoqing Jiang <gqjiang@suse.com>
Date: Fri, 24 Feb 2017 03:15:12 +0000 (+0800)
Subject: md-cluster: free md_cluster_info if node leave cluster
X-Git-Tag: v4.1.49~77
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=23d1aa2220b016890938281138beafe7b9175050;p=thirdparty%2Fkernel%2Fstable.git

md-cluster: free md_cluster_info if node leave cluster

[ Upstream commit 9c8043f337f14d1743006dfc59c03e80a42e3884 ]

To avoid memory leak, we need to free the cinfo which
is allocated when node join cluster.

Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---

diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index fcfc4b9b26728..4eb5cb18f98da 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -738,6 +738,7 @@ static int leave(struct mddev *mddev)
 	lockres_free(cinfo->sb_lock);
 	lockres_free(cinfo->bitmap_lockres);
 	dlm_release_lockspace(cinfo->lockspace, 2);
+	kfree(cinfo);
 	return 0;
 }