linux-kernel - [PATCH -next] tty: serial: Use DEFINE

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Date:   Wed, 23 Dec 2020 22:14:38 +0800
From:   Zheng Yongjun <zhengyongjun3@...wei.com>
To:     <gregkh@...uxfoundation.org>, <linux-serial@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     Zheng Yongjun <zhengyongjun3@...wei.com>
Subject: [PATCH -next] tty: serial: 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/tty/serial/icom.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index 94c8281ddb5f..9a872750581c 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -118,7 +118,7 @@ MODULE_DEVICE_TABLE(pci, icom_pci_table);
 static LIST_HEAD(icom_adapter_head);
 
 /* spinlock for adapter initialization and changing adapter operations */
-static spinlock_t icom_lock;
+static DEFINE_SPINLOCK(icom_lock);
 
 #ifdef ICOM_TRACE
 static inline void trace(struct icom_port *icom_port, char *trace_pt,
@@ -1616,8 +1616,6 @@ static int __init icom_init(void)
 {
 	int ret;
 
-	spin_lock_init(&icom_lock);
-
 	ret = uart_register_driver(&icom_uart_driver);
 	if (ret)
 		return ret;
-- 
2.22.0