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 --- arch/powerpc/sysdev/Makefile | 50 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 arch/powerpc/sysdev/Makefile (limited to 'arch/powerpc/sysdev/Makefile') diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile new file mode 100644 index 000000000..0834a9a12 --- /dev/null +++ b/arch/powerpc/sysdev/Makefile @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: GPL-2.0 + +mpic-msi-obj-$(CONFIG_PCI_MSI) += mpic_msi.o mpic_u3msi.o +obj-$(CONFIG_MPIC) += mpic.o $(mpic-msi-obj-y) +obj-$(CONFIG_MPIC_TIMER) += mpic_timer.o +obj-$(CONFIG_FSL_MPIC_TIMER_WAKEUP) += fsl_mpic_timer_wakeup.o +mpic-msgr-obj-$(CONFIG_MPIC_MSGR) += mpic_msgr.o +obj-$(CONFIG_MPIC) += mpic.o $(mpic-msi-obj-y) $(mpic-msgr-obj-y) +obj-$(CONFIG_PPC_EPAPR_HV_PIC) += ehv_pic.o +fsl-msi-obj-$(CONFIG_PCI_MSI) += fsl_msi.o +obj-$(CONFIG_PPC_MSI_BITMAP) += msi_bitmap.o + +obj-$(CONFIG_PPC_MPC106) += grackle.o +obj-$(CONFIG_PPC_DCR_NATIVE) += dcr-low.o +obj-$(CONFIG_U3_DART) += dart_iommu.o +obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o +obj-$(CONFIG_FSL_SOC) += fsl_soc.o fsl_mpic_err.o +obj-$(CONFIG_FSL_PCI) += fsl_pci.o $(fsl-msi-obj-y) +obj-$(CONFIG_FSL_PMC) += fsl_pmc.o +obj-$(CONFIG_FSL_CORENET_RCPM) += fsl_rcpm.o +obj-$(CONFIG_FSL_LBC) += fsl_lbc.o +obj-$(CONFIG_FSL_GTM) += fsl_gtm.o +obj-$(CONFIG_FSL_RIO) += fsl_rio.o fsl_rmu.o +obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o +obj-$(CONFIG_RTC_DRV_CMOS) += rtc_cmos_setup.o + +obj-$(CONFIG_PPC_INDIRECT_PCI) += indirect_pci.o +obj-$(CONFIG_PPC_I8259) += i8259.o +obj-$(CONFIG_IPIC) += ipic.o +obj-$(CONFIG_OF_RTC) += of_rtc.o + +obj-$(CONFIG_CPM) += cpm_common.o +obj-$(CONFIG_CPM2) += cpm2.o cpm2_pic.o cpm_gpio.o +obj-$(CONFIG_8xx_GPIO) += cpm_gpio.o +obj-$(CONFIG_QUICC_ENGINE) += cpm_common.o +obj-$(CONFIG_PPC_DCR) += dcr.o + +obj-$(CONFIG_PPC_MPC512x) += mpc5xxx_clocks.o +obj-$(CONFIG_PPC_MPC52xx) += mpc5xxx_clocks.o + +ifdef CONFIG_SUSPEND +obj-$(CONFIG_PPC_BOOK3S_32) += 6xx-suspend.o +endif + +obj-$(CONFIG_PPC_EARLY_DEBUG_MEMCONS) += udbg_memcons.o + +obj-$(CONFIG_PPC_XICS) += xics/ +obj-$(CONFIG_PPC_XIVE) += xive/ + +obj-$(CONFIG_GE_FPGA) += ge/ -- cgit v1.3.1