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/tee/Kconfig | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 drivers/tee/Kconfig (limited to 'drivers/tee/Kconfig') diff --git a/drivers/tee/Kconfig b/drivers/tee/Kconfig new file mode 100644 index 000000000..98c3ad083 --- /dev/null +++ b/drivers/tee/Kconfig @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: GPL-2.0-only +# Generic Trusted Execution Environment Configuration +menuconfig TEE + tristate "Trusted Execution Environment support" + depends on HAVE_ARM_SMCCC || COMPILE_TEST || CPU_SUP_AMD + select CRYPTO_LIB_SHA1 + select DMA_SHARED_BUFFER + select GENERIC_ALLOCATOR + help + This implements a generic interface towards a Trusted Execution + Environment (TEE). + +if TEE + +config TEE_DMABUF_HEAPS + bool + depends on HAS_DMA && DMABUF_HEAPS + default y + +source "drivers/tee/optee/Kconfig" +source "drivers/tee/amdtee/Kconfig" +source "drivers/tee/tstee/Kconfig" +source "drivers/tee/qcomtee/Kconfig" + +endif -- cgit v1.3.1