From bde14184781bd24ee6fb0e1af8d69ca21acbd6e6 Mon Sep 17 00:00:00 2001
From: Aliaksei Karaliou <akaraliou.dev@gmail.com>
Date: Sat, 23 Dec 2017 13:27:03 +0300
Subject: [PATCH] dm bufio: add missed destroys of client mutex
Git-commit: bde14184781bd24ee6fb0e1af8d69ca21acbd6e6
Patch-mainline: v4.16-rc1
References: bsc#1093023

The client's mutex needs to be destroyed in dm_bufio_client_destroy() as
well as the dm_bufio_client_create() error path.

Signed-off-by: Aliaksei Karaliou <akaraliou.dev@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Coly Li <colyli@suse.de>

---
 drivers/md/dm-bufio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 951a6356fbec..1d130130f264 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -1767,6 +1767,7 @@ struct dm_bufio_client *dm_bufio_client_create(struct block_device *bdev, unsign
 	}
 	dm_io_client_destroy(c->dm_io);
 bad_dm_io:
+	mutex_destroy(&c->lock);
 	kfree(c);
 bad_client:
 	return ERR_PTR(r);
@@ -1811,6 +1812,7 @@ void dm_bufio_client_destroy(struct dm_bufio_client *c)
 		BUG_ON(c->n_buffers[i]);
 
 	dm_io_client_destroy(c->dm_io);
+	mutex_destroy(&c->lock);
 	kfree(c);
 }
 EXPORT_SYMBOL_GPL(dm_bufio_client_destroy);
-- 
2.16.3