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 --- arch/mips/Kbuild | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 arch/mips/Kbuild (limited to 'arch/mips/Kbuild') diff --git a/arch/mips/Kbuild b/arch/mips/Kbuild new file mode 100644 index 000000000..e901bf554 --- /dev/null +++ b/arch/mips/Kbuild @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: GPL-2.0 + +# platform specific definitions +include $(srctree)/arch/mips/Kbuild.platforms +obj-y := $(platform-y) + +# make clean traverses $(obj-) without having included .config, so +# everything ends up here +obj- := $(platform-y) + +# mips object files +# The object files are linked as core-y files would be linked + +obj-y += generic/ +obj-y += kernel/ +obj-y += mm/ +obj-y += net/ +obj-y += vdso/ + +ifdef CONFIG_KVM +obj-y += kvm/ +endif + +# for cleaning +subdir- += boot -- cgit v1.3.1