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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-18 10:56:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-18 10:56:27 -0700 |
| commit | 674366e90e5a2430e3ddef40ce51512d681944e4 (patch) | |
| tree | 0f10f4ad6f676bcabceb9652835785b833fd47bc /arch | |
| parent | b81fd5ba6002306f0c2bf82514b2eeae6ee2bf32 (diff) | |
| parent | f5d3352b2751f8de7e06e23a04ac0b4c474075e9 (diff) | |
Merge tag 'pci-v3.15-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"These are fixes for a powerpc NULL pointer dereference, an OF
interrupt mapping issue on some of the new host bridges, and a
DesignWare iATU issue.
Host bridge drivers
- Fix OF interrupt mapping for DesignWare, R-Car, Tegra (Lucas Stach)
- Fix DesignWare iATU programming (Mohit Kumar)
Miscellaneous
- Fix powerpc NULL dereference from list_for_each_entry() update (Mike Qiu)"
* tag 'pci-v3.15-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: tegra: Use new OF interrupt mapping when possible
PCI: rcar: Use new OF interrupt mapping when possible
PCI: designware: Use new OF interrupt mapping when possible
PCI: designware: Fix iATU programming for cfg1, io and mem viewport
PCI: designware: Fix comment for setting number of lanes
powerpc/PCI: Fix NULL dereference in sys_pciconfig_iobase() list traversal
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/pci_64.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 2a4779091a5..155013da27e 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -208,7 +208,7 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus, unsigned long in_devfn) { struct pci_controller* hose; - struct pci_bus *bus = NULL; + struct pci_bus *tmp_bus, *bus = NULL; struct device_node *hose_node; /* Argh ! Please forgive me for that hack, but that's the @@ -229,10 +229,12 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus, * used on pre-domains setup. We return the first match */ - list_for_each_entry(bus, &pci_root_buses, node) { - if (in_bus >= bus->number && in_bus <= bus->busn_res.end) + list_for_each_entry(tmp_bus, &pci_root_buses, node) { + if (in_bus >= tmp_bus->number && + in_bus <= tmp_bus->busn_res.end) { + bus = tmp_bus; break; - bus = NULL; + } } if (bus == NULL || bus->dev.of_node == NULL) return -ENODEV; |