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/pps/clients/Kconfig | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 drivers/pps/clients/Kconfig (limited to 'drivers/pps/clients/Kconfig') diff --git a/drivers/pps/clients/Kconfig b/drivers/pps/clients/Kconfig new file mode 100644 index 000000000..4f3244e17 --- /dev/null +++ b/drivers/pps/clients/Kconfig @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# PPS clients configuration +# + +comment "PPS clients support" + +config PPS_CLIENT_KTIMER + tristate "Kernel timer client (Testing client, use for debug)" + help + If you say yes here you get support for a PPS debugging client + which uses a kernel timer to generate the PPS signal. + + This driver can also be built as a module. If so, the module + will be called pps-ktimer. + +config PPS_CLIENT_LDISC + tristate "PPS line discipline" + depends on TTY + help + If you say yes here you get support for a PPS source connected + with the CD (Carrier Detect) pin of your serial port. + +config PPS_CLIENT_PARPORT + tristate "Parallel port PPS client" + depends on PARPORT + help + If you say yes here you get support for a PPS source connected + with the interrupt pin of your parallel port. + +config PPS_CLIENT_GPIO + tristate "PPS client using GPIO" + help + If you say yes here you get support for a PPS source using + GPIO. To be useful you must also register a platform device + specifying the GPIO pin and other options, usually in your board + setup. -- cgit v1.3.1