linux-kernel - [PATCH 4.4 33/91] dm stats: fix a leaked s->histogram

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Message-Id: <20170310083902.432819595@linuxfoundation.org>
Date:   Fri, 10 Mar 2017 10:08:32 +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, Mikulas Patocka <mpatocka@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>
Subject: [PATCH 4.4 33/91] dm stats: fix a leaked s->histogram_boundaries array

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

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

From: Mikulas Patocka <mpatocka@...hat.com>

commit 6085831883c25860264721df15f05bbded45e2a2 upstream.

Fixes: dfcfac3e4cd9 ("dm stats: collect and report histogram of IO latencies")
Signed-off-by: Mikulas Patocka <mpatocka@...hat.com>
Signed-off-by: Mike Snitzer <snitzer@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/md/dm-stats.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -175,6 +175,7 @@ static void dm_stat_free(struct rcu_head
 	int cpu;
 	struct dm_stat *s = container_of(head, struct dm_stat, rcu_head);
 
+	kfree(s->histogram_boundaries);
 	kfree(s->program_id);
 	kfree(s->aux_data);
 	for_each_possible_cpu(cpu) {