tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: c87d46a9e8ebd2f2c3960927b1d21687096d1109 commit: 9788d087caffd8358d6e14349ee69d9385666719 [7316/11867] drm/amd/display: improve the message printed when loading DC config: mips-randconfig-m031-20230620 (https://download.01.org/0day-ci/archive/20230622/202306222109.GOpiisJ1-lkp@xxxxxxxxx/config) compiler: mips-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230622/202306222109.GOpiisJ1-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> | Closes: https://lore.kernel.org/r/202306222109.GOpiisJ1-lkp@xxxxxxxxx/ New smatch warnings: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:1673 amdgpu_dm_init() error: we previously assumed 'adev->dm.dc' could be null (see line 1669) Old smatch warnings: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:1905 amdgpu_dm_fini() error: we previously assumed 'adev->dm.dc' could be null (see line 1889) drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6079 create_stream_for_sink() error: we previously assumed 'aconnector->dc_sink' could be null (see line 5971) drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8708 amdgpu_dm_atomic_commit_tail() error: we previously assumed 'aconnector->dc_link' could be null (see line 8689) drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8961 dm_force_atomic_commit() error: 'crtc_state' dereferencing possible ERR_PTR() vim +1673 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c 0dd79532340568 Zhan Liu 2021-03-08 1662 INIT_LIST_HEAD(&adev->dm.da_list); 57b9f3384c64e3 Fangzhi Zuo 2022-07-06 1663 57b9f3384c64e3 Fangzhi Zuo 2022-07-06 1664 retrieve_dmi_info(&adev->dm); 57b9f3384c64e3 Fangzhi Zuo 2022-07-06 1665 4562236b3bc0a2 Harry Wentland 2017-09-12 1666 /* Display Core create. */ 4562236b3bc0a2 Harry Wentland 2017-09-12 1667 adev->dm.dc = dc_create(&init_data); ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Allocation 4562236b3bc0a2 Harry Wentland 2017-09-12 1668 423788c7a866cb Ernst Sjöstrand 2017-11-07 @1669 if (adev->dm.dc) { ^^^^^^^^^^^ Check for allocation failure 9788d087caffd8 Aurabindo Pillai 2023-05-05 1670 DRM_INFO("Display Core v%s initialized on %s\n", DC_VER, bf7fda0b3736f9 Rodrigo Siqueira 2023-04-25 1671 dce_version_to_string(adev->dm.dc->ctx->dce_version)); 423788c7a866cb Ernst Sjöstrand 2017-11-07 1672 } else { 9788d087caffd8 Aurabindo Pillai 2023-05-05 @1673 DRM_INFO("Display Core v%s failed to initialize on %s\n", DC_VER, 9788d087caffd8 Aurabindo Pillai 2023-05-05 1674 dce_version_to_string(adev->dm.dc->ctx->dce_version)); ^^^^^^^^^^^^^ NULL pointer dereference 423788c7a866cb Ernst Sjöstrand 2017-11-07 1675 goto error; 423788c7a866cb Ernst Sjöstrand 2017-11-07 1676 } 4562236b3bc0a2 Harry Wentland 2017-09-12 1677 8a791dabea1816 Harry Wentland 2020-05-01 1678 if (amdgpu_dc_debug_mask & DC_DISABLE_PIPE_SPLIT) { 8a791dabea1816 Harry Wentland 2020-05-01 1679 adev->dm.dc->debug.force_single_disp_pipe_split = false; 8a791dabea1816 Harry Wentland 2020-05-01 1680 adev->dm.dc->debug.pipe_split_policy = MPC_SPLIT_AVOID; 8a791dabea1816 Harry Wentland 2020-05-01 1681 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
