linux-kernel - [PATCH -next] dlm: use DEFINE

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Message-ID: <20210409095139.2293922-1-yebin10@huawei.com>
Date:   Fri, 9 Apr 2021 17:51:39 +0800
From:   Ye Bin <yebin10@...wei.com>
To:     <yebin10@...wei.com>, Christine Caulfield <ccaulfie@...hat.com>,
        "David Teigland" <teigland@...hat.com>
CC:     <cluster-devel@...hat.com>, <linux-kernel@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>, Hulk Robot <hulkci@...wei.com>
Subject: [PATCH -next] dlm: use DEFINE_MUTEX() for mutex lock

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

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Ye Bin <yebin10@...wei.com>
---
 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);