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/usb/chipidea/Kconfig | 64 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 drivers/usb/chipidea/Kconfig (limited to 'drivers/usb/chipidea/Kconfig') diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig new file mode 100644 index 000000000..bab45bc62 --- /dev/null +++ b/drivers/usb/chipidea/Kconfig @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: GPL-2.0 + +config USB_CHIPIDEA + tristate "ChipIdea Highspeed Dual Role Controller" + depends on ((USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)) && HAS_DMA + select EXTCON + select RESET_CONTROLLER + select USB_ULPI_BUS + select USB_ROLE_SWITCH + select USB_TEGRA_PHY if ARCH_TEGRA + help + Say Y here if your system has a dual role high speed USB + controller based on ChipIdea silicon IP. It supports: + Dual-role switch (ID, OTG FSM, sysfs), Host-only, and + Peripheral-only. + + When compiled dynamically, the module will be called ci_hdrc.ko. + +if USB_CHIPIDEA + +config USB_CHIPIDEA_UDC + bool "ChipIdea device controller" + depends on USB_GADGET + help + Say Y here to enable device controller functionality of the + ChipIdea driver. + +config USB_CHIPIDEA_HOST + bool "ChipIdea host controller" + depends on USB_EHCI_HCD + select USB_EHCI_ROOT_HUB_TT + help + Say Y here to enable host controller functionality of the + ChipIdea driver. + +config USB_CHIPIDEA_PCI + tristate "Enable PCI glue driver" if EXPERT + depends on USB_PCI + depends on NOP_USB_XCEIV + default USB_CHIPIDEA + +config USB_CHIPIDEA_MSM + tristate "Enable MSM hsusb glue driver" if EXPERT + default USB_CHIPIDEA + +config USB_CHIPIDEA_NPCM + tristate "Enable NPCM hsusb glue driver" if EXPERT + default USB_CHIPIDEA + +config USB_CHIPIDEA_IMX + tristate "Enable i.MX USB glue driver" if EXPERT + depends on OF + default USB_CHIPIDEA + +config USB_CHIPIDEA_GENERIC + tristate "Enable generic USB2 glue driver" if EXPERT + default USB_CHIPIDEA + +config USB_CHIPIDEA_TEGRA + tristate "Enable Tegra USB glue driver" if EXPERT + depends on OF + default USB_CHIPIDEA + +endif -- cgit v1.3.1