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| author | Andreas Noever <andreas.noever@gmail.com> | 2014-09-16 15:16:02 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-09-16 15:16:02 -0600 |
| commit | bceee4a97eb58bd0e80e39eff11b506ddd9e7ad3 (patch) | |
| tree | 7cff0a11926205c5d81e0fe984834ed882d58306 /drivers/pci/hotplug/pciehp_hpc.c | |
| parent | d537a3abb4b7085ebc3ce35e64acbad8ece1eece (diff) | |
PCI: pciehp: Prevent NULL dereference during probe
pciehp assumes that dev->subordinate, the struct pci_bus for a bridge's
secondary bus, exists. But we do not create that bus if we run out of bus
numbers during enumeration. This leads to a NULL dereference in
init_slot() (and other places).
Change pciehp_probe() to return -ENODEV when no secondary bus is present.
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org # v3.2+
Diffstat (limited to 'drivers/pci/hotplug/pciehp_hpc.c')
0 files changed, 0 insertions, 0 deletions