[PATCH 04/12] drm/amd/display: Add null pointer check to is_dig_enabled func

[Anson Jacob]

From: Michael Strauss <michael.strauss at amd.com>

[WHY]
Safeguarding as pointer may be null in diagnostic environment

Signed-off-by: Michael Strauss <michael.strauss at amd.com>
Reviewed-by: Sung Lee <Sung.Lee at amd.com>
Acked-by: Anson Jacob <Anson.Jacob at amd.com>
---
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
index 991b9c5beaa3..aadb801447a7 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
@@ -75,7 +75,8 @@ int vg_get_active_display_cnt_wa(
 		const struct dc_link *link = dc->links[i];
 
 		/* abusing the fact that the dig and phy are coupled to see if the phy is enabled */
-		if (link->link_enc->funcs->is_dig_enabled(link->link_enc))
+		if (link->link_enc->funcs->is_dig_enabled &&
+				link->link_enc->funcs->is_dig_enabled(link->link_enc))
 			display_count++;
 	}
 
-- 
2.25.1