4.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mikita Lipski <mikita.lipski@xxxxxxx> [ Upstream commit 4ea7fc09539bd2399c1fa7acea14529406120d9e ] Prevent interrupt programming of a crtc on which the stream is disabled and it doesn't have an OTG to reference. Signed-off-by: Mikita Lipski <mikita.lipski@xxxxxxx> Reviewed-by: Harry Wentland <Harry.Wentland@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c @@ -555,6 +555,9 @@ static inline int dm_irq_state(struct am return 0; } + if (acrtc->otg_inst == -1) + return 0; + irq_source = dal_irq_type + acrtc->otg_inst; st = (state == AMDGPU_IRQ_STATE_ENABLE);
