linux-kernel - [PATCH 4.9 027/177] md-cluster: free md_cluster

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Message-Id: <20171218152911.246642747@linuxfoundation.org>
Date:   Mon, 18 Dec 2017 16:47:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, NeilBrown <neilb@...e.com>,
        Guoqing Jiang <gqjiang@...e.com>, Shaohua Li <shli@...com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.9 027/177] md-cluster: free md_cluster_info if node leave cluster

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

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

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/md/md-cluster.c |    1 +
 1 file changed, 1 insertion(+)

--- 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;
 }