linux-kernel - [PATCH v2 -next] staging: most: net: use DEFINE

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Message-ID: <20201224132519.31504-1-zhengyongjun3@huawei.com>
Date:   Thu, 24 Dec 2020 21:25:19 +0800
From:   Zheng Yongjun <zhengyongjun3@...wei.com>
To:     <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>
CC:     <gregkh@...uxfoundation.org>,
        Zheng Yongjun <zhengyongjun3@...wei.com>
Subject: [PATCH v2 -next] staging: most: net: use DEFINE_MUTEX() for mutex lock

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

Signed-off-by: Zheng Yongjun <zhengyongjun3@...wei.com>
---
 drivers/staging/most/net/net.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/most/net/net.c b/drivers/staging/most/net/net.c
index b6fecb06a0e6..f125bb6da406 100644
--- a/drivers/staging/most/net/net.c
+++ b/drivers/staging/most/net/net.c
@@ -68,7 +68,7 @@ struct net_dev_context {
 };
 
 static struct list_head net_devices = LIST_HEAD_INIT(net_devices);
-static struct mutex probe_disc_mt; /* ch->linked = true, most_nd_open */
+static DEFINE_MUTEX(probe_disc_mt); /* ch->linked = true, most_nd_open */
 static DEFINE_SPINLOCK(list_lock); /* list_head, ch->linked = false, dev_hold */
 static struct most_component comp;
 
@@ -520,7 +520,6 @@ static int __init most_net_init(void)
 {
 	int err;
 
-	mutex_init(&probe_disc_mt);
 	err = most_register_component(&comp);
 	if (err)
 		return err;
-- 
2.22.0