[PATCH 10/27] drm/amd/display: Null check for gamma correction.

[Harry Wentland]

From: Yongqiang Sun <yongqiang.sun at amd.com>

Signed-off-by: Yongqiang Sun <yongqiang.sun at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 ++-
 1 file changed, 2 insertions(+), 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 a3f84dc851a1..e6f822761b37 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
@@ -900,7 +900,8 @@ static bool dcn10_set_input_transfer_func(struct pipe_ctx *pipe_ctx,
 	if (plane_state->in_transfer_func)
 		tf = plane_state->in_transfer_func;
 
-	if (plane_state->gamma_correction->is_identity)
+	if (plane_state->gamma_correction &&
+		plane_state->gamma_correction->is_identity)
 		dpp_base->funcs->dpp_set_degamma(dpp_base, IPP_DEGAMMA_MODE_BYPASS);
 	else if (plane_state->gamma_correction && dce_use_lut(plane_state->format))
 		dpp_base->funcs->dpp_program_input_lut(dpp_base, plane_state->gamma_correction);
-- 
2.14.1