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/gnss/Kconfig | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 drivers/gnss/Kconfig (limited to 'drivers/gnss/Kconfig') diff --git a/drivers/gnss/Kconfig b/drivers/gnss/Kconfig new file mode 100644 index 000000000..d7fe265c2 --- /dev/null +++ b/drivers/gnss/Kconfig @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# GNSS receiver configuration +# + +menuconfig GNSS + tristate "GNSS receiver support" + help + Say Y here if you have a GNSS receiver (e.g. a GPS receiver). + + To compile this driver as a module, choose M here: the module will + be called gnss. + +if GNSS + +config GNSS_SERIAL + tristate + +config GNSS_MTK_SERIAL + tristate "Mediatek GNSS receiver support" + depends on SERIAL_DEV_BUS + select GNSS_SERIAL + help + Say Y here if you have a Mediatek-based GNSS receiver which uses a + serial interface. + + To compile this driver as a module, choose M here: the module will + be called gnss-mtk. + + If unsure, say N. + +config GNSS_SIRF_SERIAL + tristate "SiRFstar GNSS receiver support" + depends on SERIAL_DEV_BUS + help + Say Y here if you have a SiRFstar-based GNSS receiver which uses a + serial interface. + + To compile this driver as a module, choose M here: the module will + be called gnss-sirf. + + If unsure, say N. + +config GNSS_UBX_SERIAL + tristate "u-blox GNSS receiver support" + depends on SERIAL_DEV_BUS + select GNSS_SERIAL + help + Say Y here if you have a u-blox GNSS receiver which uses a serial + interface. + + To compile this driver as a module, choose M here: the module will + be called gnss-ubx. + + If unsure, say N. + +config GNSS_USB + tristate "USB GNSS receiver support" + depends on USB + help + Say Y here if you have a GNSS receiver which uses a USB interface. + + To compile this driver as a module, choose M here: the module will + be called gnss-usb. + + If unsure, say N. + +endif # GNSS -- cgit v1.3.1