[PATCH -next] md: bcache: use DEFINE_MUTEX (and mutex_init() had been too late)

From: Zheng Yongjun
Date: Wed Dec 23 2020 - 09:13:20 EST


Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
---
drivers/md/bcache/super.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 46a00134a36a..963d62a15f37 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -40,7 +40,7 @@ static const char invalid_uuid[] = {
};

static struct kobject *bcache_kobj;
-struct mutex bch_register_lock;
+DEFINE_MUTEX(bch_register_lock);
bool bcache_is_reboot;
LIST_HEAD(bch_cache_sets);
static LIST_HEAD(uncached_devices);
@@ -2832,7 +2832,6 @@ static int __init bcache_init(void)

check_module_parameters();

- mutex_init(&bch_register_lock);
init_waitqueue_head(&unregister_wait);
register_reboot_notifier(&reboot);

--
2.22.0