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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 <Jerry.Zuo@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Jerry Zuo 2017-10-05 15:37:46 -04:00 committed by Alex Deucher
parent 3411eac1a1
commit 886daac91d
1 changed files with 5 additions and 4 deletions
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9
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -3736,14 +3736,15 @@ 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)