linux-kernel - [PATCH] arch/sh/mm/consistent.c: Use dma_zalloc

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Date:   Sun, 28 Oct 2018 12:28:56 +0530
From:   Sabyasachi Gupta <sabyasachi.linux@...il.com>
To:     ysato@...rs.sourceforge.jp, dalias@...c.org,
        thomas.petazzoni@...e-electrons.com, robin.murphy@....com,
        jacopo+renesas@...ndi.org
Cc:     jrdr.linux@...il.com, linux-sh@...r.kernel.org,
        linux-kernel@...r.kernel.org, brajeswar.linux@...il.com
Subject: [PATCH] arch/sh/mm/consistent.c: Use dma_zalloc_coherent

Replaced dma_alloc_coherent + memset with dma_zalloc_coherant

Signed-off-by: Sabyasachi Gupta <sabyasachi.linux@...il.com>
---
 arch/sh/mm/consistent.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 792f361..fc8d235 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -52,13 +52,12 @@ int __init platform_resource_setup_memory(struct platform_device *pdev,
 	if (!memsize)
 		return 0;
 
-	buf = dma_alloc_coherent(&pdev->dev, memsize, &dma_handle, GFP_KERNEL);
+	buf = dma_zalloc_coherent(&pdev->dev, memsize, &dma_handle, GFP_KERNEL);
 	if (!buf) {
 		pr_warning("%s: unable to allocate memory\n", name);
 		return -ENOMEM;
 	}
 
-	memset(buf, 0, memsize);
 
 	r->flags = IORESOURCE_MEM;
 	r->start = dma_handle;
-- 
2.7.4