From: Roman Li <Roman.Li@amd.com>
Date: Wed, 14 Mar 2018 18:02:07 -0400
Subject: drm/amd/display: add assert in enable FBC
Git-commit: 7a84077304e84d0254d505a76cc40971cb74c2de
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Adding assert to prevent possible null deref warning.
Only can happen under abnormal circumstances.
Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -1806,6 +1806,9 @@ static bool should_enable_fbc(struct 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;