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/misc/keba/Kconfig | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 drivers/misc/keba/Kconfig (limited to 'drivers/misc/keba/Kconfig') diff --git a/drivers/misc/keba/Kconfig b/drivers/misc/keba/Kconfig new file mode 100644 index 000000000..d6d47197a --- /dev/null +++ b/drivers/misc/keba/Kconfig @@ -0,0 +1,26 @@ +# SPDX-License-Identifier: GPL-2.0 +config KEBA_CP500 + tristate "KEBA CP500 system FPGA support" + depends on X86_64 || ARM64 || COMPILE_TEST + depends on PCI + depends on I2C + select AUXILIARY_BUS + help + This driver supports the KEBA CP500 system FPGA, which is used in + KEBA CP500 devices. It registers all sub devices present on the CP500 + system FPGA as separate devices. A driver is needed for each sub + device. + + This driver can also be built as a module. If so, the module will be + called cp500. + +config KEBA_LAN9252 + tristate "KEBA CP500 LAN9252 configuration" + depends on SPI + depends on KEBA_CP500 || COMPILE_TEST + help + This driver is used for updating the configuration of the LAN9252 + controller on KEBA CP500 devices. + + This driver can also be built as a module. If so, the module will be + called lan9252. -- cgit v1.3.1