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From: Harry Wentland <harry.wentland@amd.com>
Date: Fri, 10 Nov 2017 12:00:41 -0500
Subject: drm/amd/display: Remove plane_res.mi check in
 dce110_apply_ctx_for_surface
Git-commit: ede569844a1b11b368a88269545a9d83cf98063c
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

plane_res.mi (memory interface) can never be NULL for DCE110

Found by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/dce110/dce110_hw_sequencer.c:2881
dce110_apply_ctx_for_surface() error: we previously assumed
'pipe_ctx->plane_res.mi' could be null (see line 2873)

Signed-off-by: Harry Wentland <harry.wentland@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 |   13 +++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -2872,13 +2872,12 @@ static void dce110_apply_ctx_for_surface
 			continue;
 
 		/* Need to allocate mem before program front end for Fiji */
-		if (pipe_ctx->plane_res.mi != NULL)
-			pipe_ctx->plane_res.mi->funcs->allocate_mem_input(
-					pipe_ctx->plane_res.mi,
-					pipe_ctx->stream->timing.h_total,
-					pipe_ctx->stream->timing.v_total,
-					pipe_ctx->stream->timing.pix_clk_khz,
-					context->stream_count);
+		pipe_ctx->plane_res.mi->funcs->allocate_mem_input(
+				pipe_ctx->plane_res.mi,
+				pipe_ctx->stream->timing.h_total,
+				pipe_ctx->stream->timing.v_total,
+				pipe_ctx->stream->timing.pix_clk_khz,
+				context->stream_count);
 
 		dce110_program_front_end_for_pipe(dc, pipe_ctx);