drm/amd/display: fix uninitialized symbol 'id' in bios_parser_get_src_obj

Commit Message

Yang Xiao Nov. 28, 2018, 2:02 a.m. UTC

From: Young Xiao <[e-mail]>

See commit a8f976473196 ("drm/amd/display: Bunch of smatch error and
warning fixes in DC") for detail.

Signed-off-by: Young Xiao <[e-mail]>
---
 drivers/gpu/drm/amd/display/dc/bios/bios_parser.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
index 0e1dc1b..6420546 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
@@ -188,7 +188,7 @@  static enum bp_result bios_parser_get_src_obj(struct dc_bios *dcb,
 	struct graphics_object_id *src_object_id)
 {
 	uint32_t number;
-	uint16_t *id;
+	uint16_t *id = NULL;
 	ATOM_OBJECT *object;
 	struct bios_parser *bp = BP_FROM_DCB(dcb);
 
@@ -204,7 +204,7 @@  static enum bp_result bios_parser_get_src_obj(struct dc_bios *dcb,
 
 	number = get_src_obj_list(bp, object, &id);
 
-	if (number <= index)
+	if (number <= index || !id)
 		return BP_RESULT_BADINPUT;
 
 	*src_object_id = object_id_from_bios_object_id(id[index]);