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/thunderbolt/Makefile | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 drivers/thunderbolt/Makefile (limited to 'drivers/thunderbolt/Makefile') diff --git a/drivers/thunderbolt/Makefile b/drivers/thunderbolt/Makefile new file mode 100644 index 000000000..beb054c31 --- /dev/null +++ b/drivers/thunderbolt/Makefile @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0-only +ccflags-y := -I$(src) +obj-${CONFIG_USB4} := thunderbolt.o +thunderbolt-objs := nhi.o ctl.o tb.o switch.o cap.o pci.o path.o tunnel.o eeprom.o +thunderbolt-objs += domain.o dma_port.o icm.o property.o xdomain.o lc.o tmu.o usb4.o +thunderbolt-objs += usb4_port.o nvm.o retimer.o quirks.o clx.o + +thunderbolt-${CONFIG_ACPI} += acpi.o +thunderbolt-$(CONFIG_DEBUG_FS) += debugfs.o +thunderbolt-$(CONFIG_USB4_CONFIGFS) += configfs.o +thunderbolt-${CONFIG_USB4_KUNIT_TEST} += test.o +CFLAGS_test.o += $(DISABLE_STRUCTLEAK_PLUGIN) + +thunderbolt_dma_test-${CONFIG_USB4_DMA_TEST} += dma_test.o +obj-$(CONFIG_USB4_DMA_TEST) += thunderbolt_dma_test.o + +thunderbolt_stream-${CONFIG_USB4_STREAM} += stream.o +obj-$(CONFIG_USB4_STREAM) += thunderbolt_stream.o -- cgit v1.3.1