linux-kernel - [PATCH -next] drivers: memory: Use DEFINE

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Message-ID: <20201228135056.28511-1-zhengyongjun3@huawei.com>
Date:   Mon, 28 Dec 2020 21:50:56 +0800
From:   Zheng Yongjun <zhengyongjun3@...wei.com>
To:     <ssantosh@...nel.org>, <krzk@...nel.org>,
        <linux-kernel@...r.kernel.org>
CC:     Zheng Yongjun <zhengyongjun3@...wei.com>
Subject: [PATCH -next] drivers: memory: Use DEFINE_SPINLOCK() for spinlock

spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

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

diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index ddb1879f07d3..f7825eef5894 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -70,7 +70,7 @@ struct emif_data {
 };
 
 static struct emif_data *emif1;
-static spinlock_t	emif_lock;
+static DEFINE_SPINLOCK(emif_lock);
 static unsigned long	irq_state;
 static u32		t_ck; /* DDR clock period in ps */
 static LIST_HEAD(device_list);
@@ -1531,7 +1531,6 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
 	/* One-time actions taken on probing the first device */
 	if (!emif1) {
 		emif1 = emif;
-		spin_lock_init(&emif_lock);
 
 		/*
 		 * TODO: register notifiers for frequency and voltage
-- 
2.22.0