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-buf/Makefile | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 drivers/dma-buf/Makefile (limited to 'drivers/dma-buf/Makefile') diff --git a/drivers/dma-buf/Makefile b/drivers/dma-buf/Makefile new file mode 100644 index 000000000..b25d7550b --- /dev/null +++ b/drivers/dma-buf/Makefile @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \ + dma-fence-unwrap.o dma-resv.o dma-buf-mapping.o +obj-$(CONFIG_DMABUF_HEAPS) += dma-heap.o +obj-$(CONFIG_DMABUF_HEAPS) += heaps/ +obj-$(CONFIG_SYNC_FILE) += sync_file.o +obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o +obj-$(CONFIG_UDMABUF) += udmabuf.o + +dmabuf_kunit-y := \ + st-dma-fence.o \ + st-dma-fence-chain.o \ + st-dma-fence-unwrap.o \ + st-dma-resv.o + +obj-$(CONFIG_DMABUF_KUNIT_TEST) += dmabuf_kunit.o -- cgit v1.3.1