linux-kernel - [PATCH -next] i2c: gpio: use DEFINE

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Message-ID: <20210327095228.105123-1-chenlifu@huawei.com>
Date:   Sat, 27 Mar 2021 17:52:28 +0800
From:   Chen Lifu <chenlifu@...wei.com>
To:     <chenlifu@...wei.com>, Russell King <linux@...linux.org.uk>
CC:     <heying24@...wei.com>, <yuehaibing@...wei.com>,
        <weiyongjun1@...wei.com>, <johnny.chenyi@...wei.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: [PATCH -next] i2c: gpio: use DEFINE_SPINLOCK() for spinlock

From: Lifu Chen <chenlifu@...wei.com>

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

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Lifu Chen <chenlifu@...wei.com>
---
 arch/arm/mach-sa1100/simpad.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c
index c7fb9a73e4c5..c183432880d3 100644
--- a/arch/arm/mach-sa1100/simpad.c
+++ b/arch/arm/mach-sa1100/simpad.c
@@ -45,7 +45,7 @@
  */
 
 static long cs3_shadow;
-static spinlock_t cs3_lock;
+static DEFINE_SPINLOCK(cs3_lock);
 static struct gpio_chip cs3_gpio;
 
 long simpad_get_cs3_ro(void)
@@ -379,8 +379,6 @@ static int __init simpad_init(void)
 {
 	int ret;
 
-	spin_lock_init(&cs3_lock);
-
 	cs3_gpio.label = "simpad_cs3";
 	cs3_gpio.base = SIMPAD_CS3_GPIO_BASE;
 	cs3_gpio.ngpio = 24;