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List: linux-bcache
Subject: [PATCH 06/19] bcache: explicitly destory mutex while exiting
From: bcache () lists ! ewheeler ! net
Date: 2017-06-30 20:42:55
Message-ID: 1498855388-16990-6-git-send-email-bcache () lists ! ewheeler ! net
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From: Liang Chen <liangchen.linux@gmail.com>
mutex_destroy does nothing most of time, but it's better to call
it to make the code future proof and it also has some meaning
for like mutex debug.
Signed-off-by: Liang Chen <liangchen.linux@gmail.com>
Reviewed-by: Eric Wheeler <bcache@linux.ewheeler.net>
Cc: stable@vger.kernel.org
---
drivers/md/bcache/super.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 48b8c20..1f84791 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -2089,6 +2089,7 @@ static void bcache_exit(void)
if (bcache_major)
unregister_blkdev(bcache_major, "bcache");
unregister_reboot_notifier(&reboot);
+ mutex_destroy(&bch_register_lock);
}
static int __init bcache_init(void)
@@ -2106,6 +2107,7 @@ static int __init bcache_init(void)
bcache_major = register_blkdev(0, "bcache");
if (bcache_major < 0) {
+ mutex_destroy(&bch_register_lock);
unregister_reboot_notifier(&reboot);
return bcache_major;
}
--
1.8.3.1
--
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