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 --- drivers/dma/idxd/Makefile | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 drivers/dma/idxd/Makefile (limited to 'drivers/dma/idxd/Makefile') diff --git a/drivers/dma/idxd/Makefile b/drivers/dma/idxd/Makefile new file mode 100644 index 000000000..9ff9d7b87 --- /dev/null +++ b/drivers/dma/idxd/Makefile @@ -0,0 +1,12 @@ +ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE='"IDXD"' + +obj-$(CONFIG_INTEL_IDXD_BUS) += idxd_bus.o +idxd_bus-y := bus.o + +obj-$(CONFIG_INTEL_IDXD) += idxd.o +idxd-y := init.o irq.o device.o sysfs.o submit.o dma.o cdev.o debugfs.o defaults.o + +idxd-$(CONFIG_INTEL_IDXD_PERFMON) += perfmon.o + +obj-$(CONFIG_INTEL_IDXD_COMPAT) += idxd_compat.o +idxd_compat-y := compat.o -- cgit v1.3.1