linux-kernel - [PATCH -next] ARM: OMAP: Use DEFINE

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Message-ID: <20210327095227.105081-1-chenlifu@huawei.com>
Date:   Sat, 27 Mar 2021 17:52:27 +0800
From:   Chen Lifu <chenlifu@...wei.com>
To:     <chenlifu@...wei.com>, Aaro Koskinen <aaro.koskinen@....fi>,
        Tony Lindgren <tony@...mide.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>, <linux-omap@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: [PATCH -next] ARM: OMAP: 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/plat-omap/dma.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 1eb59003bdec..9f11de46aaa9 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -85,7 +85,7 @@ static int dma_lch_count;
 static int dma_chan_count;
 static int omap_dma_reserve_channels;
 
-static spinlock_t dma_chan_lock;
+static DEFINE_SPINLOCK(dma_chan_lock);
 static struct omap_dma_lch *dma_chan;
 
 static inline void disable_lnk(int lch);
@@ -902,7 +902,6 @@ static int omap_system_dma_probe(struct platform_device *pdev)
 	if (!dma_chan)
 		return -ENOMEM;
 
-	spin_lock_init(&dma_chan_lock);
 	for (ch = 0; ch < dma_chan_count; ch++) {
 		omap_clear_dma(ch);