[-next] drm/amd/display: Use kmemdup in dc_copy_stream()

Submitted by YueHaibing on June 1, 2019, 7:22 a.m.

Details

Message ID 20190601072208.193673-1-yuehaibing@huawei.com
State New
Headers show
Series "drm/amd/display: Use kmemdup in dc_copy_stream()" ( rev: 1 ) in DRI devel

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Commit Message

YueHaibing June 1, 2019, 7:22 a.m.
Use kmemdup rather than duplicating its implementation.

Detected by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

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diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index a002e690814f..b166c732b532 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -167,12 +167,11 @@  struct dc_stream_state *dc_copy_stream(const struct dc_stream_state *stream)
 {
 	struct dc_stream_state *new_stream;
 
-	new_stream = kzalloc(sizeof(struct dc_stream_state), GFP_KERNEL);
+	new_stream = kmemdup(stream, sizeof(struct dc_stream_state),
+			     GFP_KERNEL);
 	if (!new_stream)
 		return NULL;
 
-	memcpy(new_stream, stream, sizeof(struct dc_stream_state));
-
 	if (new_stream->sink)
 		dc_sink_retain(new_stream->sink);