Hello! This is an experimental automated report about issues detected by Coverity from a scan of next-20191108 as part of the linux-next weekly scan project: https://scan.coverity.com/projects/linux-next-weekly-scan You're getting this email because you were associated with the identified lines of code (noted below) that were touched by recent commits: c9dc20afe70a ("drm/amd/display: Register DMUB service with DC") Coverity reported the following: *** CID 1487836: Null pointer dereferences (FORWARD_NULL) /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c: 1037 in amdgpu_dm_fini() 1031 adev->dm.hdcp_workqueue = NULL; 1032 } 1033 1034 if (adev->dm.dc) 1035 dc_deinit_callbacks(adev->dm.dc); 1036 #endif vvv CID 1487836: Null pointer dereferences (FORWARD_NULL) vvv Dereferencing null pointer "adev->dm.dc". 1037 if (adev->dm.dc->ctx->dmub_srv) { 1038 dc_dmub_srv_destroy(&adev->dm.dc->ctx->dmub_srv); 1039 adev->dm.dc->ctx->dmub_srv = NULL; 1040 } 1041 1042 if (adev->dm.dmub_bo) If this is a false positive, please let us know so we can mark it as such, or teach the Coverity rules to be smarter. If not, please make sure fixes get into linux-next. :) For patches fixing this, please include these lines (but double-check the "Fixes" first): Reported-by: coverity-bot <keescook+coverity-bot@xxxxxxxxxxxx> Addresses-Coverity-ID: 1487836 ("Null pointer dereferences") Fixes: c9dc20afe70a ("drm/amd/display: Register DMUB service with DC") Thanks for your attention! -- Coverity-bot