[PATCH -next] dlm: use DEFINE_MUTEX() for mutex lock

[Ye Bin <yebin10@xxxxxxxxxx>]

mutex lock can be initialized automatically with DEFINE_MUTEX()
rather than explicitly calling mutex_init().

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>
---
 fs/dlm/lockspace.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index c14cf2b7faab..fa3ae801aa43 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -26,7 +26,7 @@
 #include "ast.h"
 
 static int			ls_count;
-static struct mutex		ls_lock;
+static DEFINE_MUTEX(ls_lock);
 static struct list_head		lslist;
 static spinlock_t		lslist_lock;
 static struct task_struct *	scand_task;
@@ -231,7 +231,6 @@ static const struct kset_uevent_ops dlm_uevent_ops = {
 int __init dlm_lockspace_init(void)
 {
 	ls_count = 0;
-	mutex_init(&ls_lock);
 	INIT_LIST_HEAD(&lslist);
 	spin_lock_init(&lslist_lock);