[PATCH 33/87] drm/amd/display: Check for valid stream_encode

[sunpeng.li at amd.com]

From: Ilya Bakoulin <Ilya.Bakoulin at amd.com>

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

Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin at amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein at amd.com>
Acked-by: Leo Li <sunpeng.li at 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 1bc19d42fc9f..35d697dd5808 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -609,7 +609,8 @@ 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;
-- 
2.22.0