From 5be62339a7442f02b7de212ba9dcfb55c1166119 Mon Sep 17 00:00:00 2001 From: Jerry Zuo Date: Thu, 5 Oct 2017 15:37:46 -0400 Subject: [PATCH 2557/4131] drm/amd/display: Fix a logic defect in cursor move Regression caused by: Ib98354194d7 Need to check crtc->stream before updating cursor attributes and position. Signed-off-by: Jerry Zuo Reviewed-by: Roman Li Acked-by: Harry Wentland --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index a64321b..a1caae0 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3943,14 +3943,15 @@ static void handle_cursor_update(struct drm_plane *plane, attributes.pitch = attributes.width; - if (!dc_stream_set_cursor_attributes(crtc_state->stream, - &attributes)) - DRM_ERROR("DC failed to set cursor attributes\n"); + if (crtc_state->stream) { + if (!dc_stream_set_cursor_attributes(crtc_state->stream, + &attributes)) + DRM_ERROR("DC failed to set cursor attributes\n"); - if (crtc_state->stream) if (!dc_stream_set_cursor_position(crtc_state->stream, &position)) DRM_ERROR("DC failed to set cursor position\n"); + } } static void prepare_flip_isr(struct amdgpu_crtc *acrtc) -- 2.7.4