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| author | Alex Williamson <alex.williamson@redhat.com> | 2015-09-18 15:08:54 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <helgaas@kernel.org> | 2015-09-24 17:06:32 -0500 |
| commit | 38ea72bdb65df2f40ec77b2c9d1413e7f5e34465 (patch) | |
| tree | 9356d810f4575ff20e2615043de2005439202845 /drivers/pci/access.c | |
| parent | b838b39e930aa1cfd099ea82ac40ed6d6413af26 (diff) | |
PCI/MSI: Fix MSI IRQ domains for VFs on virtual buses
SR-IOV creates a virtual bus where bus->self is NULL. When we add VFs and
scan for an MSI domain, pci_set_bus_msi_domain() dereferences bus->self,
which causes a kernel NULL pointer dereference oops.
Scan up to the parent bus until we find a real bridge where we can get the
MSI domain.
[bhelgaas: changelog]
Fixes: 44aa0c657e3e ("PCI/MSI: Add hooks to populate the msi_domain field")
Tested-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/pci/access.c')
0 files changed, 0 insertions, 0 deletions