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: v4.4.107~97
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0d0456ec2b089457233f4a33c9939dfeff11fbbd;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@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index d6a1126d85ce1..494d01d0e92a9 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -821,6 +821,7 @@ static int leave(struct mddev *mddev)
 	lockres_free(cinfo->no_new_dev_lockres);
 	lockres_free(cinfo->bitmap_lockres);
 	dlm_release_lockspace(cinfo->lockspace, 2);
+	kfree(cinfo);
 	return 0;
 }