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| author | Andreas Noever <andreas.noever@gmail.com> | 2014-09-16 15:16:02 -0600 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-12-14 16:23:42 +0000 |
| commit | 5581d5a5ad8bde5d8be7f1342d01f74c66b75efc (patch) | |
| tree | 5980be7b944e0cbf5f185efd9389e76772eae132 /mm/fremap.c | |
| parent | 2f3007855abfd0a7b9ac0925b20bbf972cc0e347 (diff) | |
PCI: pciehp: Prevent NULL dereference during probe
commit bceee4a97eb58bd0e80e39eff11b506ddd9e7ad3 upstream.
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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'mm/fremap.c')
0 files changed, 0 insertions, 0 deletions