linux-kernel - [PATCH -next] drm/amdgpu: use kmemdup rather than duplicating its implementation

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Date:	Thu, 28 Jul 2016 16:18:17 +0000
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	Alex Deucher <alexander.deucher@....com>, christian.koenig@....com,
	airlied@...ux.ie, sonny.jiang@....com, leo.liu@....com,
	arindam.nath@....com, David1.Zhou@....com, Jammy.Zhou@....com,
	Monk.Liu@....com
Cc:	Wei Yongjun <weiyj.lk@...il.com>, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH -next] drm/amdgpu: use kmemdup rather than duplicating its implementation

Use kmemdup rather than duplicating its implementation.

Generated by: scripts/coccinelle/api/memdup.cocci

Signed-off-by: Wei Yongjun <weiyj.lk@...il.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index a46a64c..b779b5f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -296,12 +296,10 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 	size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 	ptr = adev->uvd.cpu_addr;
 
-	adev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
+	adev->uvd.saved_bo = kmemdup(ptr, size, GFP_KERNEL);
 	if (!adev->uvd.saved_bo)
 		return -ENOMEM;
 
-	memcpy(adev->uvd.saved_bo, ptr, size);
-
 	return 0;
 }