From: Alex Hung alex.hung@amd.com

[WHAT]

hws was checked for null earlier in dce110_blank_stream, indicating hws can be null, and should be checked whenever it is used.

Cc: Mario Limonciello mario.limonciello@amd.com Cc: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Reviewed-by: Aurabindo Pillai aurabindo.pillai@amd.com Signed-off-by: Alex Hung alex.hung@amd.com Signed-off-by: Aurabindo Pillai aurabindo.pillai@amd.com --- drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c index c717cc1eca6d..542468224789 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c @@ -1227,7 +1227,7 @@ void dce110_blank_stream(struct pipe_ctx *pipe_ctx) return;

if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP) { - if (!link->skip_implict_edp_power_control) + if (!link->skip_implict_edp_power_control && hws) hws->funcs.edp_backlight_control(link, false); link->dc->hwss.set_abm_immediate_disable(pipe_ctx); }