amdgpu/dc: kfree already checks for NULL.

Don't bother checking for it.

Found with the cocci ifnullfree.cocci script.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/basics/vector.c

@@ -130,8 +130,7 @@ struct vector *dal_vector_create(
 void dal_vector_destruct(
 	struct vector *vector)
 {
-	if (vector->container != NULL)
-		kfree(vector->container);
+	kfree(vector->container);
 	vector->count = 0;
 	vector->capacity = 0;
 }

drivers/gpu/drm/amd/display/dc/bios/bios_parser.c

@@ -119,11 +119,8 @@ struct dc_bios *bios_parser_create(
 
 static void destruct(struct bios_parser *bp)
 {
-	if (bp->base.bios_local_image)
-		kfree(bp->base.bios_local_image);
-
-	if (bp->base.integrated_info)
-		kfree(bp->base.integrated_info);
+	kfree(bp->base.bios_local_image);
+	kfree(bp->base.integrated_info);
 }
 
 static void bios_parser_destroy(struct dc_bios **dcb)

drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c

@@ -85,11 +85,8 @@ static struct atom_encoder_caps_record *get_encoder_cap_record(
 
 static void destruct(struct bios_parser *bp)
 {
-	if (bp->base.bios_local_image)
-		kfree(bp->base.bios_local_image);
-
-	if (bp->base.integrated_info)
-		kfree(bp->base.integrated_info);
+	kfree(bp->base.bios_local_image);
+	kfree(bp->base.integrated_info);
 }
 
 static void firmware_parser_destroy(struct dc_bios **dcb)

drivers/gpu/drm/amd/display/dc/core/dc_resource.c

@@ -159,8 +159,7 @@ void dc_destroy_resource_pool(struct dc  *dc)
 		if (dc->res_pool)
 			dc->res_pool->funcs->destroy(&dc->res_pool);
 
-		if (dc->hwseq)
-			kfree(dc->hwseq);
+		kfree(dc->hwseq);
 	}
 }
 

drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c

@@ -619,14 +619,9 @@ void dce110_clock_source_destroy(struct clock_source **clk_src)
 
 	dce110_clk_src = TO_DCE110_CLK_SRC(*clk_src);
 
-	if (dce110_clk_src->dp_ss_params)
-		kfree(dce110_clk_src->dp_ss_params);
-
-	if (dce110_clk_src->hdmi_ss_params)
-		kfree(dce110_clk_src->hdmi_ss_params);
-
-	if (dce110_clk_src->dvi_ss_params)
-		kfree(dce110_clk_src->dvi_ss_params);
+	kfree(dce110_clk_src->dp_ss_params);
+	kfree(dce110_clk_src->hdmi_ss_params);
+	kfree(dce110_clk_src->dvi_ss_params);
 
 	kfree(dce110_clk_src);
 	*clk_src = NULL;