[PATCH 4.4 018/115] md-cluster: free md_cluster_info if node leave cluster

[Greg Kroah-Hartman]

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Guoqing Jiang <gqji...@suse.com>


[ Upstream commit 9c8043f337f14d1743006dfc59c03e80a42e3884 ]

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

Reviewed-by: NeilBrown <ne...@suse.com>
Signed-off-by: Guoqing Jiang <gqji...@suse.com>
Signed-off-by: Shaohua Li <s...@fb.com>
Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/md/md-cluster.c |    1 +
 1 file changed, 1 insertion(+)

--- 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;
 }