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linux-hardened/drivers/pci/hotplug
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Rafael J. Wysocki f41b326131 ACPI / hotplug / PCI: Move PCI rescan-remove locking to hotplug_event() 
Commit 9217a98467 (ACPI / hotplug / PCI: Use global PCI rescan-remove
locking) modified ACPIPHP to protect its PCI device removal and addition
code paths from races against sysfs-driven rescan and remove operations
with the help of PCI rescan-remove locking.  However, it overlooked the
fact that hotplug_event_work() is not the only caller of hotplug_event()
which may also be called by dock_hotplug_event() and that code path
is missing the PCI rescan-remove locking.  This means that, although
the PCI rescan-remove lock is held as appropriate during the handling
of events originating from handle_hotplug_event(), the ACPIPHP's
operations resulting from dock events may still suffer the race
conditions that commit 9217a98467 was supposed to eliminate.

To address that problem, move the PCI rescan-remove locking from
hotplug_event_work() to hotplug_event() so that it is used regardless
of the way that function is invoked.

Revamps: 9217a98467 (ACPI / hotplug / PCI: Use global PCI rescan-remove locking)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2014-02-03 22:28:18 +01:00
..
acpi_pcihp.c ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro 2013-11-14 23:17:21 +01:00
acpiphp.h ACPI / hotplug / PCI: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
acpiphp_core.c ACPI / hotplug / PCI: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
acpiphp_glue.c ACPI / hotplug / PCI: Move PCI rescan-remove locking to hotplug_event() 2014-02-03 22:28:18 +01:00
acpiphp_ibm.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
cpci_hotplug.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
cpci_hotplug_core.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
cpci_hotplug_pci.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
cpcihp_generic.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
cpcihp_zt5550.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
cpcihp_zt5550.h PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
cpqphp.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
cpqphp_core.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
cpqphp_ctrl.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
cpqphp_nvram.c PCI Hotplug: cpqphp: fix comment style 2009-06-11 12:04:08 -07:00
cpqphp_nvram.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
cpqphp_pci.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
cpqphp_sysfs.c cpqphp_sysfs: switch to fixed_size_llseek() 2013-06-29 12:57:52 +04:00
ibmphp.h PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
ibmphp_core.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
ibmphp_ebda.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
ibmphp_hpc.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
ibmphp_pci.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
ibmphp_res.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
Kconfig PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
Makefile PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
pci_hotplug_core.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
pciehp.h ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
pciehp_acpi.c PCI updates for v3.13: 2013-11-22 10:53:47 -08:00
pciehp_core.c Merge branch 'pci/dead-code' into next 2014-01-13 16:47:08 -07:00
pciehp_ctrl.c PCI: pciehp: Move Attention & Power Indicator support tests to accessors 2013-12-15 18:00:00 -07:00
pciehp_hpc.c PCI: pciehp: Move Attention & Power Indicator support tests to accessors 2013-12-15 18:00:00 -07:00
pciehp_pci.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
pcihp_skeleton.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
pcihp_slot.c PCI: Simplify pcie_bus_configure_settings() interface 2013-08-22 10:47:02 -06:00
rpadlpar.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
rpadlpar_core.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
rpadlpar_sysfs.c PCI: introduce pci_slot 2008-06-10 14:37:03 -07:00
rpaphp.h PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
rpaphp_core.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
rpaphp_pci.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
rpaphp_slot.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
s390_pci_hpc.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
sgi_hotplug.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
shpchp.h PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
shpchp_core.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
shpchp_ctrl.c PCI: shpchp: Use per-slot workqueues to avoid deadlock 2013-01-14 10:23:22 -07:00
shpchp_hpc.c PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
shpchp_pci.c PCI: hotplug: Use global PCI rescan-remove locking 2014-01-14 12:14:25 -07:00
shpchp_sysfs.c PCI: Remove __must_check from definitions 2013-04-17 10:20:58 -06:00