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16b036af31
linux/drivers/pci
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Michel Dänzer 16b036af31 PCI: Fix infinite loop with ROM image of size 0 
If the image size would ever read as 0, pci_get_rom_size() could keep
processing the same image over and over again.  Exit the loop if we ever
read a length of zero.

This fixes a soft lockup on boot when the radeon driver calls
pci_get_rom_size() on an AMD Radeon R7 250X PCIe discrete graphics card.

[bhelgaas: changelog, reference]
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386973
Reported-by: Federico <federicotg@gmail.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
2015-01-23 17:42:59 -06:00
..
host Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
hotplug Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-19 14:02:02 -08:00
pcie PCI / PM: Drop CONFIG_PM_RUNTIME from the PCI core 2014-12-04 00:50:33 +01:00
access.c PCI: Apply _HPX Link Control settings to all devices with a link 2014-11-13 15:43:42 -07:00
ats.c PCI: Removed unused parts of Page Request Interface support 2014-01-10 14:00:47 -07:00
bus.c PCI: Move EXPORT_SYMBOL so it immediately follows function/variable 2014-06-10 13:36:10 -06:00
host-bridge.c PCI: Remove unnecessary includes of <linux/init.h> 2014-04-14 16:12:37 -06:00
hotplug-pci.c PCI: Remove unnecessary __ref annotations 2014-04-29 17:36:44 -06:00
htirq.c PCI changes for the v3.16 merge window (part 2): 2014-06-12 13:20:24 -07:00
iov.c PCI: Remove fixed parameter in pci_iov_resource_bar() 2014-11-19 15:07:43 -07:00
irq.c
Kconfig x86, irq: Make MSI and HT_IRQ indepenent of X86_IO_APIC 2014-12-16 14:08:17 +01:00
Makefile PCI: Remove PCI ioapic driver 2014-12-16 14:08:14 +01:00
msi.c Merge branch 'irq-irqdomain-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-10 09:01:01 -08:00
of.c
pci-acpi.c PCI: Delete unnecessary NULL pointer checks 2014-11-10 21:02:17 -07:00
pci-driver.c PCI / PM: Drop CONFIG_PM_RUNTIME from the PCI core 2014-12-04 00:50:33 +01:00
pci-label.c ACPI / PCI: Fix sysfs acpi_index and label errors 2014-07-02 15:27:08 -06:00
pci-stub.c PCI: Whitespace cleanup 2014-06-10 20:20:19 -06:00
pci-sysfs.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
pci.c xen: features and fixes for 3.19-rc0 2014-12-11 18:15:33 -08:00
pci.h PCI changes for the v3.19 merge window: 2014-12-10 20:58:52 -08:00
probe.c PCI changes for the v3.19 merge window: 2014-12-10 20:58:52 -08:00
proc.c PCI: Whitespace cleanup 2014-06-10 20:20:19 -06:00
quirks.c PCI: Prevent xHCI driver from claiming AMD Nolan USB3 DRD device 2014-11-03 10:03:40 -06:00
remove.c Revert "PCI: Remove from bus_list and release resources in pci_release_dev()" 2014-02-01 10:24:31 -08:00
rom.c PCI: Fix infinite loop with ROM image of size 0 2015-01-23 17:42:59 -06:00
search.c PCI: Delete unnecessary NULL pointer checks 2014-11-10 21:02:17 -07:00
setup-bus.c PCI: Add missing MEM_64 mask in pci_assign_unassigned_bridge_resources() 2014-09-30 13:56:46 -06:00
setup-irq.c PCI: Whitespace cleanup 2014-06-10 20:20:19 -06:00
setup-res.c PCI: Tidy resource assignment messages 2014-07-08 16:29:08 -06:00
slot.c VERIFY_OCTAL_PERMISSIONS: stricter checking for sysfs perms. 2014-03-24 12:21:00 +10:30
syscall.c PCI: Whitespace cleanup 2014-06-10 20:20:19 -06:00
vc.c
vpd.c
xen-pcifront.c Merge branches 'pci/enumeration', 'pci/hotplug', 'pci/misc', 'pci/numa' and 'pci/virtualization' into next 2014-11-19 15:10:33 -07:00