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7880b72e94
linux/drivers/pci
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Benjamin Herrenschmidt 1a4b1a41b8 pci: Don't crash when reading mpss from root complex 
In pcie_find_smpss(), we have the following statement:

 	if (dev->is_hotplug_bridge && (!list_is_singular(&dev->bus->devices) ||
	    dev->bus->self->pcie_type != PCI_EXP_TYPE_ROOT_PORT))

The problem is that at least on my machine, this gets called for the
root complex (virtual P2P bridge), and dev->bus->self is NULL since
the parent bus for this is not itself anchor to a PCI device.

This adds the necessary NULL check.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Jon Mason <mason@myri.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-13 16:08:31 -07:00
..
hotplug Fix pointer dereference before call to pcie_bus_configure_settings 2011-09-09 19:49:58 -07:00
pcie Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
.gitignore
access.c PCI: handle positive error codes 2011-05-10 15:43:36 -07:00
bus.c PCI/sysfs: move bus cpuaffinity to class dev_attrs 2011-05-21 12:17:13 -07:00
hotplug-pci.c
hotplug.c
htirq.c drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
ioapic.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
iov.c PCI: Move ATS declarations in seperate header file 2011-04-11 09:01:41 +02:00
irq.c PCI: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-07 11:12:23 -08:00
Kconfig PCI: pci-label: Fix build failure when CONFIG_NLS is set to 'm' by allmodconfig 2011-04-12 08:39:02 -07:00
Makefile Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-07-22 16:39:42 -07:00
msi.c drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
msi.h PCI: MSI: Move MSI-X entry definition to pci_regs.h 2010-12-23 12:53:07 -08:00
of.c PCI: OF: Don't crash when bridge parent is NULL. 2011-08-19 08:51:37 -07:00
pci-acpi.c ACPI: Add D3 cold state 2011-05-29 02:21:08 -04:00
pci-driver.c PCI / PM: Detect early wakeup in pci_pm_prepare() 2011-07-06 10:51:40 +02:00
pci-label.c pci-label.c: size_t misspelled as mode_t 2011-07-26 13:01:09 -04:00
pci-stub.c PCI: pci-stub: ignore zero-length id parameters 2010-12-23 12:53:52 -08:00
pci-sysfs.c PCI/sysfs: move bus cpuaffinity to class dev_attrs 2011-05-21 12:17:13 -07:00
pci.c PCI: Remove MRRS modification from MPS setting code 2011-09-09 19:49:58 -07:00
pci.h PCI: make cardbus-bridge resources optional 2011-08-01 11:50:40 -07:00
probe.c pci: Don't crash when reading mpss from root complex 2011-09-13 16:08:31 -07:00
proc.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
quirks.c mmc: Added quirks for Ricoh 1180:e823 lower base clock frequency 2011-07-21 10:35:04 -04:00
remove.c PCI/sysfs: move bus cpuaffinity to class dev_attrs 2011-05-21 12:17:13 -07:00
rom.c PCI: fix rom.c kernel-doc warning 2009-02-13 12:01:56 -08:00
search.c PCI: use for_each_pci_dev() 2010-07-30 09:47:22 -07:00
setup-bus.c PCI: code and comments cleanup 2011-08-01 11:50:50 -07:00
setup-irq.c PCI: Make the struct pci_dev * argument of pci_fixup_irqs const. 2011-07-22 08:26:06 -07:00
setup-res.c PCI : ability to relocate assigned pci-resources 2011-08-01 11:50:15 -07:00
slot.c PCI: bus speed strings should be const 2010-08-31 15:28:00 -07:00
syscall.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
vpd.c pci: Add helper to search for VPD keywords 2010-02-28 00:43:33 -08:00
xen-pcifront.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00