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Thu, 22 Jun 2023 07:14:42 -0700 (PDT) Date: Thu, 22 Jun 2023 17:14:39 +0300 From: Dan Carpenter To: oe-kbuild@lists.linux.dev, Aurabindo Pillai Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Alex Deucher , Harry Wentland Subject: [linux-next:master 7316/11867] 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) Message-ID: <8889c4d2-2629-4d69-bc4a-9b46fe0c5997@kadam.mountain> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 0177D1C010B X-Stat-Signature: j5soyi1kpsznqmwdtwnhmap4pjrw9epy X-HE-Tag: 1687443285-395971 X-HE-Meta: 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 sGAYPX+u ofR+JMia/v61Pk6DrKEzkTOws9ITuAXBbFUMon+4tDKQvEesvrtCQDKOztZjDpr+v500A/AQkU4r0ETnkcmMa1nWziYeroKPD0VV5e9ry+cqBfZ3XsXw3c2w1PmJ2KB5MqzetLCwCFtjHdpbhAwLE7Cpv1ZB6hI8rkXEpVWNB15lGcR7IXo1gwjr4Ecc/OUaU6vgFVvsNIojmDpErMI9AJI1rSi19VhucvAb29kHG5z9OoIR/c4FT28hkBXixDfXBqByPnTjaMSZxJa9zPca8zvb1XsoNzo3tladqgvpjqNrFz/k9CDW2XAJNj5TD47CMcSUewkuKfg1z7qVgmY83JpJAhJLy1PDKEe7W2TMa9p36hjEOj7W/Lkzpqd50dE9+SN5RGV79dlWdztHwmlGFdk8NoFoVtS6tssCy8DWWt2iasMkx6RXiovmHrA8tnM2EHcriQmpLHIEbwjOhtV1uGHFuzDTTcFgxanMeZnfeps2eC6gMQVj1IowD077i9Hf6M5RtygqFb0iSCW8oDQKRpLlSNCWfFA5c3/vyk9uac3g7yU+w077m25xfZhp9cYX3TpGD X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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@intel.com/config) compiler: mips-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230622/202306222109.GOpiisJ1-lkp@intel.com/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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202306222109.GOpiisJ1-lkp@intel.com/ 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