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 --- fs/proc/Makefile | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 fs/proc/Makefile (limited to 'fs/proc/Makefile') diff --git a/fs/proc/Makefile b/fs/proc/Makefile new file mode 100644 index 000000000..27e2b26b2 --- /dev/null +++ b/fs/proc/Makefile @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Linux proc filesystem routines. +# + +obj-y += proc.o + +CFLAGS_task_mmu.o += -Wno-override-init +proc-y := nommu.o task_nommu.o +proc-$(CONFIG_MMU) := task_mmu.o + +proc-y += inode.o root.o base.o generic.o array.o \ + fd.o +proc-$(CONFIG_TTY) += proc_tty.o +proc-y += cmdline.o +proc-y += consoles.o +proc-y += cpuinfo.o +proc-y += devices.o +ifneq ($(CONFIG_GENERIC_IRQ_SHOW),y) +proc-y += interrupts.o +endif +proc-y += loadavg.o +proc-y += meminfo.o +proc-y += stat.o +proc-y += uptime.o +proc-y += util.o +proc-y += version.o +proc-y += softirqs.o +proc-y += namespaces.o +proc-y += self.o +proc-y += thread_self.o +proc-$(CONFIG_SYSCTL) += proc_sysctl.o +proc-$(CONFIG_NET) += proc_net.o +proc-$(CONFIG_PROC_KCORE) += kcore.o +proc-$(CONFIG_PROC_VMCORE) += vmcore.o +proc-$(CONFIG_PRINTK) += kmsg.o +proc-$(CONFIG_PROC_PAGE_MONITOR) += page.o +proc-$(CONFIG_BOOT_CONFIG) += bootconfig.o -- cgit v1.3.1