From cb0863c2aedf1bcdccfc50b3327967e359ccad6c Mon Sep 17 00:00:00 2001 From: Roman Li Date: Wed, 14 Mar 2018 18:02:07 -0400 Subject: [PATCH 3935/4131] drm/amd/display: add assert in enable FBC Adding assert to prevent possible null deref warning. Only can happen under abnormal circumstances. Signed-off-by: Roman Li Reviewed-by: Tony Cheng Acked-by: Harry Wentland --- drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index daa4673..075ab29 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1801,6 +1801,9 @@ static bool should_enable_fbc(struct dc *dc, } } + /* Pipe context should be found */ + ASSERT(pipe_ctx); + /* Only supports eDP */ if (pipe_ctx->stream->sink->link->connector_signal != SIGNAL_TYPE_EDP) return false; -- 2.7.4