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 fcfc4b9b26728029e59023ae3762d271b8f7a676..4eb5cb18f98dad8054364b8d1806d2d1d5ba88c4 100644 (file)
--- 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;
 }