From 27600805e62f800bacf990354632eae4e487d34c Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Thu, 3 Sep 2026 10:43:25 -0500 Subject: x86/amd_node: Fix PCI device reference counting in amd_smn_init() The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the search is complete. Use the __free() cleanup macro to ensure the refcount is decremented when the temporary pointer goes out of scope. Additionally, increment the refcount when caching a root pointer. This ensures the in-use refcount is separate from the temporary search refcounting. Finally, drop the redundant "root = NULL" before the second search loop. The pci_get_class() iterator always decrements the refcount of its "from" argument, so the first loop can only fall through with "root" already NULL. Fixes: 0a4b61d9c2e4 ("x86/amd_node: Fix AMD root device caching") Closes: https://sashiko.dev/#/patchset/20260806160159.230453-1-jason.andryuk%40amd.com Reported-by: Sashiko Assisted-by: LLM Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Mario Limonciello (AMD) Cc: Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com --- Documentation/gpu/driver-uapi.rst | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/gpu/driver-uapi.rst (limited to 'Documentation/gpu/driver-uapi.rst') diff --git a/Documentation/gpu/driver-uapi.rst b/Documentation/gpu/driver-uapi.rst new file mode 100644 index 000000000..627fc68c7 --- /dev/null +++ b/Documentation/gpu/driver-uapi.rst @@ -0,0 +1,36 @@ +=============== +DRM Driver uAPI +=============== + +.. contents:: + +drm/i915 uAPI +============= + +.. kernel-doc:: include/uapi/drm/i915_drm.h + +drm/nouveau uAPI +================ + +VM_BIND / EXEC uAPI +------------------- + +.. kernel-doc:: drivers/gpu/drm/nouveau/nouveau_exec.c + :doc: Overview + +.. kernel-doc:: include/uapi/drm/nouveau_drm.h + +drm/panthor uAPI +================ + +.. kernel-doc:: include/uapi/drm/panthor_drm.h + +drm/xe uAPI +=========== + +.. kernel-doc:: include/uapi/drm/xe_drm.h + +drm/asahi uAPI +================ + +.. kernel-doc:: include/uapi/drm/asahi_drm.h -- cgit v1.3.1