drm/amdgpu: use kmemdup rather than duplicating its implementation

The patch was generated using fixed coccinelle semantic patch
scripts/coccinelle/api/memdup.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2014320

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index f25cfed33927..1a7708f365f3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -536,12 +536,10 @@ int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
         if (metadata == NULL)
                 return -EINVAL;
 
-        buffer = kzalloc(metadata_size, GFP_KERNEL);
+        buffer = kmemdup(metadata, metadata_size, GFP_KERNEL);
         if (buffer == NULL)
                 return -ENOMEM;
 
-        memcpy(buffer, metadata, metadata_size);
-
         kfree(bo->metadata);
         bo->metadata_flags = flags;
         bo->metadata = buffer;