From d5cc300932b74265f3fc07e079ff8d11d4727adb Mon Sep 17 00:00:00 2001 From: David Francis Date: Mon, 25 Mar 2019 09:44:04 -0400 Subject: [PATCH 1773/2940] drm/amd/display: Handle get crtc position error [Why] dc_stream_get_crtc_position can return false. This was unhandled in delay_cursor_until_vupdate [How] If dc_stream_get_crtc_position returns false, something is weird. Don't delay. Change-Id: Id0fc61792aaa248594deb46d9984bcb3fb78559c Signed-off-by: David Francis Reviewed-by: Sun peng Li Acked-by: Bhawanpreet Lakha --- drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c index f7a293902234..e10479d58c11 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c @@ -211,7 +211,8 @@ static void delay_cursor_until_vupdate(struct pipe_ctx *pipe_ctx, struct dc *dc) ASIC_REV_IS_RAVEN(stream->ctx->asic_id.hw_internal_rev)) { vupdate_line = get_vupdate_offset_from_vsync(pipe_ctx); - dc_stream_get_crtc_position(dc, &stream, 1, &vpos, &nvpos); + if (!dc_stream_get_crtc_position(dc, &stream, 1, &vpos, &nvpos)) + return; if (vpos >= vupdate_line) return; -- 2.17.1