linux-kernel - [PATCH] ARM: dmabounce: remove unnecessary NULL check before dma_pool

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Message-ID: <20180803062627.22572-1-yuehaibing@huawei.com>
Date:   Fri, 3 Aug 2018 14:26:27 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <linux@...linux.org.uk>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] ARM: dmabounce: remove unnecessary NULL check before dma_pool_destroy

dma_pool_destroy will do NULL check,thus the check before
the call is not needed.

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 arch/arm/common/dmabounce.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 9a92de6..dcdd80c 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -569,10 +569,8 @@ void dmabounce_unregister_dev(struct device *dev)
 		BUG();
 	}
 
-	if (device_info->small.pool)
-		dma_pool_destroy(device_info->small.pool);
-	if (device_info->large.pool)
-		dma_pool_destroy(device_info->large.pool);
+	dma_pool_destroy(device_info->small.pool);
+	dma_pool_destroy(device_info->large.pool);
 
 #ifdef STATS
 	if (device_info->attr_res == 0)
-- 
2.7.0