linux-kernel - [PATCH AUTOSEL for 4.9 004/156] md-cluster: free md_cluster

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Message-ID: <20171207154845.4814-4-alexander.levin@verizon.com>
Date:   Thu, 7 Dec 2017 15:48:55 +0000
From:   alexander.levin@...izon.com
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Guoqing Jiang <gqjiang@...e.com>, Shaohua Li <shli@...com>,
        alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.9 004/156] md-cluster: free md_cluster_info if
 node leave cluster

From: Guoqing Jiang <gqjiang@...e.com>

[ Upstream commit 9c8043f337f14d1743006dfc59c03e80a42e3884 ]

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

Reviewed-by: NeilBrown <neilb@...e.com>
Signed-off-by: Guoqing Jiang <gqjiang@...e.com>
Signed-off-by: Shaohua Li <shli@...com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 drivers/md/md-cluster.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index 2b13117fb918..ba7edcdd09ce 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -974,6 +974,7 @@ static int leave(struct mddev *mddev)
 	lockres_free(cinfo->bitmap_lockres);
 	unlock_all_bitmaps(mddev);
 	dlm_release_lockspace(cinfo->lockspace, 2);
+	kfree(cinfo);
 	return 0;
 }
 
-- 
2.11.0