From: Johnson Chen <johnson.chen@xxxxxxx>
Add guard for NULL pointer access
Reviewed-by: Charlene Liu <charlene.liu@xxxxxxx>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@xxxxxxx>
Signed-off-by: Johnson Chen <johnson.chen@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
index 6ba393e5b8ee..38fa7441df51 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
@@ -158,6 +158,8 @@ bool is_dp2p0_output_encoder(const struct pipe_ctx *pipe_ctx)
/* If this assert is hit then we have a link encoder dynamic management issue */
ASSERT(pipe_ctx->stream_res.hpo_dp_stream_enc ? pipe_ctx->link_res.hpo_dp_link_enc != NULL : true);
+ if (pipe_ctx->stream == NULL)
+ return false;
/* Count MST hubs once by treating only 1st remote sink in topology as an encoder */
if (pipe_ctx->stream->link && pipe_ctx->stream->link->remote_sinks[0]) {
return (pipe_ctx->stream_res.hpo_dp_stream_enc &&
--
2.42.0
