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 --- net/nfc/Kconfig | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 net/nfc/Kconfig (limited to 'net/nfc/Kconfig') diff --git a/net/nfc/Kconfig b/net/nfc/Kconfig new file mode 100644 index 000000000..466a0279b --- /dev/null +++ b/net/nfc/Kconfig @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# NFC subsystem configuration +# + +menuconfig NFC + depends on RFKILL || !RFKILL + tristate "NFC subsystem support" + default n + help + Say Y here if you want to build support for NFC (Near field + communication) devices. + + To compile this support as a module, choose M here: the module will + be called nfc. + +config NFC_DIGITAL + depends on NFC + select CRC_CCITT + select CRC_ITU_T + tristate "NFC Digital Protocol stack support" + default n + help + Say Y if you want to build NFC digital protocol stack support. + This is needed by NFC chipsets whose firmware only implement + the NFC analog layer. + + To compile this support as a module, choose M here: the module will + be called nfc_digital. + +source "net/nfc/nci/Kconfig" +source "net/nfc/hci/Kconfig" + +source "drivers/nfc/Kconfig" -- cgit v1.3.1