From: Yue Hin Lau <yuehin....@amd.com>

Signed-off-by: Yue Hin Lau <yuehin....@amd.com>
Reviewed-by: Eric Bernstein <eric.bernst...@amd.com>
Acked-by: Harry Wentland <harry.wentl...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c 
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index ab875ea8aba4..35e84ed031de 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -580,7 +580,7 @@ static void program_timing_sync(
                for (j = 0; j < group_size; j++) {
                        struct pipe_ctx *temp;
 
-                       if 
(!pipe_set[j]->stream_res.tg->funcs->is_blanked(pipe_set[j]->stream_res.tg)) {
+                       if (pipe_set[j]->stream_res.tg->funcs->is_blanked && 
!pipe_set[j]->stream_res.tg->funcs->is_blanked(pipe_set[j]->stream_res.tg)) {
                                if (j == 0)
                                        break;
 
@@ -593,7 +593,7 @@ static void program_timing_sync(
 
                /* remove any other unblanked pipes as they have already been 
synced */
                for (j = j + 1; j < group_size; j++) {
-                       if 
(!pipe_set[j]->stream_res.tg->funcs->is_blanked(pipe_set[j]->stream_res.tg)) {
+                       if (pipe_set[j]->stream_res.tg->funcs->is_blanked && 
!pipe_set[j]->stream_res.tg->funcs->is_blanked(pipe_set[j]->stream_res.tg)) {
                                group_size--;
                                pipe_set[j] = pipe_set[group_size];
                                j--;
-- 
2.14.1

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