This patchset tries to fix several memory leakages/invalid memory accesses on error handling path during GPU driver loading/unloading. They applies to: https://gitlab.freedesktop.org/agd5f/linux.git amd-staging-drm-next v5: 1) drop first in v4, we have found a reliable way to fix the issue. 2) add patch 3 in v5 to fix a new issue 3) rework patch 5 according to review feedback v4: 1) drop patch 1 in v3 2) split out amdxcp related change into a dedicated patch 3) use `guard(mutex)` instead of mutex_lock/unlock(). 4) move patch 6 in v3 to next patch set v3: 1) drop first patch of v2 2) rework the 0003/0004 patches of v2 according to review comments 3) add patch 0004 to fix possible resource leakage in amdgpu_pci_probe() v2: 1) rebased to https://gitlab.freedesktop.org/agd5f/linux.git branch amd-staging-drm-next. 2) removed the first patch, which is unnecessary. 3) add amdgpu_xcp_drm_dev_free() in patch 0003 to enhance amdxcp driver to better support device remove and error handling. 4) reworked patch 0005 to fix it in amdgpu instead of drm core. Jiang Liu (5): drm/amdxcp: introduce new API amdgpu_xcp_drm_dev_free() drm/amdgpu: fix use after free bug related to amdgpu_driver_release_kms() drm/amdgpu: fix invalid memory access in amdgpu_xcp_cfg_sysfs_fini() drm/amdgpu: enhance error handling in function amdgpu_pci_probe() drm/amdgpu: fix invalid memory access in amdgpu_fence_driver_sw_fini() drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 39 +++++++++-- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 14 ++-- drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 9 --- drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c | 71 +++++++++++++++++---- drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h | 3 +- drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c | 63 +++++++++++++++--- drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.h | 1 + 7 files changed, 157 insertions(+), 43 deletions(-) -- 2.43.5
