Commit c5411382 authored Feb 24, 2010 by Jacob Pan Committed by H. Peter Anvin Feb 24, 2010

x86, pci: Add sanity check for PCI fixed bar probing



While probing for the PCI fixed BAR capability in the extended PCI
configuration space we need to make sure raw_pci_ext_ops is
actually initialized.

Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
LKML-Reference: <43F901BD926A4E43B106BF17856F0755A321E8F7@orsmsx508.amr.corp.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

parent 9eeeb09e

arch/x86/pci/mrst.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -57,6 +57,10 @@ static int fixed_bar_cap(struct pci_bus *bus, unsigned int devfn)
		u32 pcie_cap = 0, cap_data;

		pos = PCIE_CAP_OFFSET;

		if (!raw_pci_ext_ops)
		return 0;

		while (pos) {
		if (raw_pci_ext_ops->read(pci_domain_nr(bus), bus->number,
		devfn, pos, 4, &pcie_cap))

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