linux_dsm_epyc7002/arch/x86/pci
Wenwen Wang ea094d5358 x86/PCI: Fix PCI IRQ routing table memory leak
In pcibios_irq_init(), the PCI IRQ routing table 'pirq_table' is first
found through pirq_find_routing_table().  If the table is not found and
CONFIG_PCI_BIOS is defined, the table is then allocated in
pcibios_get_irq_routing_table() using kmalloc().  Later, if the I/O APIC is
used, this table is actually not used.  In that case, the allocated table
is not freed, which is a memory leak.

Free the allocated table if it is not used.

Signed-off-by: Wenwen Wang <wang6495@umn.edu>
[bhelgaas: added Ingo's reviewed-by, since the only change since v1 was to
use the irq_routing_table local variable name he suggested]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
2019-04-17 15:27:03 -05:00
..
acpi.c x86/PCI: Remove node-local allocation when initialising host controller 2018-09-17 16:33:24 -05:00
amd_bus.c x86/pci, x86/amd_nb: Add Hygon Dhyana support to PCI and northbridge 2018-09-27 18:28:58 +02:00
broadcom_bus.c x86/PCI: Fix Broadcom CNB20LE unintended sign extension (redux) 2018-11-08 18:01:14 -06:00
bus_numa.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bus_numa.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ce4100.c
common.c PCI: Make early dump functionality generic 2018-06-29 20:06:07 -05:00
direct.c x86/pci: Simplify code by using the new dmi_get_bios_year() helper 2018-02-23 08:20:30 +01:00
early.c PCI: Make early dump functionality generic 2018-06-29 20:06:07 -05:00
fixup.c x86/PCI: Fixup RTIT_BAR of Intel Denverton Trace Hub 2019-02-07 08:43:58 -06:00
i386.c x86/PCI: Replace spin_is_locked() with lockdep 2018-11-08 21:53:35 -08:00
init.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intel_mid_pci.c x86/platform/intel-mid: Move PCI initialization to arch_init() 2018-01-19 09:15:42 +01:00
irq.c x86/PCI: Fix PCI IRQ routing table memory leak 2019-04-17 15:27:03 -05:00
legacy.c PCI: Scan all functions when running over Jailhouse 2018-03-08 12:30:37 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmconfig_32.c
mmconfig_64.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmconfig-shared.c x86/jailhouse: Enable PCI mmconfig access in inmates 2018-03-08 12:30:38 +01:00
numachip.c
olpc.c
pcbios.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sta2x11-fixup.c dma-direct: merge swiotlb_dma_ops into the dma_direct code 2018-12-13 21:06:17 +01:00
xen.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00