From 288af96df16b629552c5bcc9ec0f0191c6198a72 Mon Sep 17 00:00:00 2001
From: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Date: Wed, 29 May 2019 18:52:17 -0400
Subject: [PATCH] drm/amd/display: Check for valid stream_encode

Before accessing it's vtable, check that stream_encoder is non-null.

Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 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 af7f8be230f74..352862370390e 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -612,7 +612,8 @@ bool dc_stream_set_dynamic_metadata(struct dc *dc,
 
 	pipe_ctx->stream->dmdata_address = attr->address;
 
-	if (pipe_ctx->stream_res.stream_enc->funcs->set_dynamic_metadata != NULL) {
+	if (pipe_ctx->stream_res.stream_enc &&
+			pipe_ctx->stream_res.stream_enc->funcs->set_dynamic_metadata != NULL) {
 		if (pipe_ctx->stream->dmdata_address.quad_part != 0) {
 			/* if using dynamic meta, don't set up generic infopackets */
 			pipe_ctx->stream_res.encoder_info_frame.hdrsmd.valid = false;
-- 
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