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>

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 af7f8be230f749513826ec4d951bb69548b77e5b..352862370390e947dbbd06bd41a07d6de48ed0e7 100644 (file)
--- 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;