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1cc1c96c16
linux/arch/x86/pci
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Yinghai Lu 1cc1c96c16 PCI: fix memleak when ACPI _CRS is not used. 
warning:
unreferenced object 0xffff8801f6914200 (size 512):
  comm "swapper/0", pid 1, jiffies 4294893643 (age 2664.644s)
  hex dump (first 32 bytes):
    00 00 c0 fe 00 00 00 00 ff ff ff ff 00 00 00 00  ................
    60 58 2f f6 03 88 ff ff 00 02 00 00 00 00 00 00  `X/.............
  backtrace:
    [<ffffffff81c2408c>] kmemleak_alloc+0x26/0x43
    [<ffffffff8113764f>] __kmalloc+0x121/0x183
    [<ffffffff81ca8d93>] get_current_resources+0x5a/0xc6
    [<ffffffff81c5bedd>] pci_acpi_scan_root+0x13c/0x21c
    [<ffffffff81c2a745>] acpi_pci_root_add+0x1e1/0x421
    [<ffffffff81408f50>] acpi_device_probe+0x50/0x190
    [<ffffffff8149edc7>] really_probe+0x99/0x126
    [<ffffffff8149ef83>] driver_probe_device+0x3b/0x56
    [<ffffffff8149effd>] __driver_attach+0x5f/0x82
    [<ffffffff8149d860>] bus_for_each_dev+0x5c/0x88
    [<ffffffff8149eb87>] driver_attach+0x1e/0x20
    [<ffffffff8149e7cc>] bus_add_driver+0xca/0x21d
    [<ffffffff8149f47b>] driver_register+0x91/0xfe
    [<ffffffff81409d09>] acpi_bus_register_driver+0x43/0x45
    [<ffffffff8278bdc9>] acpi_pci_root_init+0x20/0x28
    [<ffffffff810001e7>] do_one_initcall+0x57/0x134

The system has _CRS for root buses, but they are not used because the machine
date is before the cutoff date for _CRS usage.

Try to free those unused resource arrays and names.

Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-23 12:01:33 -08:00
..
acpi.c PCI: fix memleak when ACPI _CRS is not used. 2012-02-23 12:01:33 -08:00
amd_bus.c x86/PCI: amd: factor out MMCONFIG discovery 2012-01-06 12:11:19 -08:00
broadcom_bus.c x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan 2012-01-06 12:11:12 -08:00
bus_numa.c x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() 2012-01-06 12:11:14 -08:00
bus_numa.h Merge branch 'x86-bootmem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-03 08:15:05 -08:00
ce4100.c x86: constify PCI raw ops structures 2011-10-14 09:05:28 -07:00
common.c x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() 2012-01-06 12:11:14 -08:00
direct.c x86: constify PCI raw ops structures 2011-10-14 09:05:28 -07:00
early.c x86/PCI: remove early PCI pr_debug statements 2009-11-24 15:25:19 -08:00
fixup.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-04-01 09:47:12 -07:00
i386.c PCI: x86: use generic pcibios_set_master() 2012-01-06 12:10:46 -08:00
init.c x86, olpc: Use pci subarch init for OLPC 2010-02-25 19:26:23 -08:00
irq.c x86/PCI: irq and pci_ids patch for Intel Panther Point DeviceIDs 2011-05-10 15:43:36 -07:00
legacy.c x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() 2012-01-06 12:11:13 -08:00
Makefile x86/PCI: build amd_bus.o only when CONFIG_AMD_NB=y 2012-01-12 07:54:18 -08:00
mmconfig_32.c x86: constify PCI raw ops structures 2011-10-14 09:05:28 -07:00
mmconfig_64.c x86: constify PCI raw ops structures 2011-10-14 09:05:28 -07:00
mmconfig-shared.c x66, UV: Enable 64-bit ACPI MFCG support for SGI UV2 platform 2011-06-03 16:00:03 +02:00
mrst.c x86, pci, mrst: Add extra sanity check in walking the PCI extended cap chain 2010-07-16 16:52:15 -07:00
numaq_32.c x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() 2012-01-06 12:11:13 -08:00
olpc.c x86: constify PCI raw ops structures 2011-10-14 09:05:28 -07:00
pcbios.c typo fixes: aera -> area, exntension -> extension 2011-12-09 15:22:07 +01:00
visws.c PCI: Make the struct pci_dev * argument of pci_fixup_irqs const. 2011-07-22 08:26:06 -07:00
xen.c xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback 2012-02-03 16:06:27 -05:00