[PATCH 24/40] drm/amd/display: Guard against NULL link encoder in log hw state

[Rodrigo Siqueira]

From: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>

[Why & How]
Check lenc is not NULL since dynamic link encoder assignment could
end up assigning a NULL link encoder.

Reviewed-by: Michael Strauss <Michael.Strauss at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index aaa0bf321bce..029deb81fcfa 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -444,7 +444,7 @@ void dcn10_log_hw_state(struct dc *dc,
 
 		struct link_enc_state s = {0};
 
-		if (lenc->funcs->read_state) {
+		if (lenc && lenc->funcs->read_state) {
 			lenc->funcs->read_state(lenc, &s);
 			DTN_INFO("[%-3d]: %-12d %-22d %-22d %-25d\n",
 				i,
-- 
2.25.1