[PATCH] drm/amd/display: return status of dmub_srv_get_fw_boot_status

[Tom Rix]

gcc with W=1 reports
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:
  In function ‘dc_dmub_srv_optimized_init_done’:
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:184:26:
  error: variable ‘dmub’ set but not used [-Werror=unused-but-set-variable]
  184 |         struct dmub_srv *dmub;
      |                          ^~~~

The return status is never set.
It looks like a call to dmub_srv_get_fw_boot_status is missing.

Fixes: 499e4b1c722e ("drm/amd/display: add mechanism to skip DCN init")
Signed-off-by: Tom Rix <t...@redhat.com>
---
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c 
b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index d15ec32243e2..36d936ab4300 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -182,14 +182,23 @@ bool dc_dmub_srv_cmd_run_list(struct dc_dmub_srv 
*dc_dmub_srv, unsigned int coun
 bool dc_dmub_srv_optimized_init_done(struct dc_dmub_srv *dc_dmub_srv)
 {
        struct dmub_srv *dmub;
-       union dmub_fw_boot_status status;
+       struct dc_context *dc_ctx;
+       union dmub_fw_boot_status boot_status;
+       enum dmub_status status;
 
        if (!dc_dmub_srv || !dc_dmub_srv->dmub)
                return false;
 
        dmub = dc_dmub_srv->dmub;
+       dc_ctx = dc_dmub_srv->ctx;
+
+       status = dmub_srv_get_fw_boot_status(dmub, &boot_status);
+       if (status != DMUB_STATUS_OK) {
+               DC_ERROR("Error querying DMUB boot status: error=%d\n", status);
+               return false;
+       }
 
-       return status.bits.optimized_init_done;
+       return boot_status.bits.optimized_init_done;
 }
 
 bool dc_dmub_srv_notify_stream_mask(struct dc_dmub_srv *dc_dmub_srv,
-- 
2.27.0