From: Zheng Yongjun <zhengyongjun3@huawei.com>
To: <linux-i2c@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Zheng Yongjun <zhengyongjun3@huawei.com>
Subject: [PATCH -next] i2c: busses: Use DEFINE_SPINLOCK() for spinlock
Date: Mon, 28 Dec 2020 21:51:20 +0800 [thread overview]
Message-ID: <20201228135120.28678-1-zhengyongjun3@huawei.com> (raw)
spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
---
drivers/i2c/busses/i2c-elektor.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c
index 140426db28df..671f9ac8387e 100644
--- a/drivers/i2c/busses/i2c-elektor.c
+++ b/drivers/i2c/busses/i2c-elektor.c
@@ -49,7 +49,7 @@ static int mmapped;
static wait_queue_head_t pcf_wait;
static int pcf_pending;
-static spinlock_t lock;
+static DEFINE_SPINLOCK(lock);
static struct i2c_adapter pcf_isa_ops;
@@ -132,7 +132,6 @@ static irqreturn_t pcf_isa_handler(int this_irq, void *dev_id) {
static int pcf_isa_init(void)
{
- spin_lock_init(&lock);
if (!mmapped) {
if (!request_region(base, 2, pcf_isa_ops.name)) {
printk(KERN_ERR "%s: requested I/O region (%#x:2) is "
--
2.22.0
next reply other threads:[~2020-12-28 13:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-28 13:51 Zheng Yongjun [this message]
2021-01-05 16:44 ` [PATCH -next] i2c: busses: Use DEFINE_SPINLOCK() for spinlock Wolfram Sang
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