Hello Rodrigo Siqueira,
This is a semi-automatic email about new static checker warnings.
The patch 00fa7f031dd4: "drm/amd/display: Add basic infrastructure
for enabling FAMS" from Jun 16, 2022, leads to the following Smatch
complaint:
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:311
dc_dmub_srv_p_state_delegate()
warn: variable dereferenced before check 'dc' (see line 309)
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c
308 int ramp_up_num_steps = 1; // TODO: Ramp is currently disabled.
Reenable it.
309 uint8_t visual_confirm_enabled = dc->debug.visual_confirm ==
VISUAL_CONFIRM_FAMS;
^^^^^^^^^^^^^^^^^^^^^^^^
Dereference
310
311 if (dc == NULL)
^^^^^^^^^^
NULL check is too late
312 return false;
313
regards,
dan carpenter
