[PATCH] drm/amd/display: remove variable "result" in dcn20_patch_unknown_plane_state()

[Jason Yan]

Fix the following coccicheck warning:

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c:3216:16-22:
Unneeded variable: "result". Return "DC_OK" on line 3229

Signed-off-by: Jason Yan <yanaijie at huawei.com>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 4dea550c3f83..3c0090797866 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -3228,8 +3228,6 @@ static struct dc_cap_funcs cap_funcs = {
 
 enum dc_status dcn20_patch_unknown_plane_state(struct dc_plane_state *plane_state)
 {
-	enum dc_status result = DC_OK;
-
 	enum surface_pixel_format surf_pix_format = plane_state->format;
 	unsigned int bpp = resource_pixel_format_to_bpp(surf_pix_format);
 
@@ -3241,7 +3239,7 @@ enum dc_status dcn20_patch_unknown_plane_state(struct dc_plane_state *plane_stat
 		swizzle = DC_SW_64KB_S;
 
 	plane_state->tiling_info.gfx9.swizzle = swizzle;
-	return result;
+	return DC_OK;
 }
 
 static struct resource_funcs dcn20_res_pool_funcs = {
-- 
2.21.1