diff options
| author | Johnson Chen <johnson.chen@amd.com> | 2023-12-01 06:25:08 -0700 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-12-06 15:22:33 -0500 |
| commit | 2cbed167d2698f10a67f47f14aaac7d498f6dfb7 (patch) | |
| tree | d71469dd623c78620e4fa4223b323b25ab2c331b | |
| parent | 823423b8ec7b56e22dad83e171c9ca6418679169 (diff) | |
drm/amd/display: Fix null pointer
Add guard for NULL pointer access
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Johnson Chen <johnson.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c | 2 |
1 files changed, 2 insertions, 0 deletions
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 && |