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

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(-)

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);