diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2007-10-15 20:45:32 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-17 16:25:10 -0700 |
| commit | 4209ab098c61b1a9684bb4d3fc287352fc2438c3 (patch) | |
| tree | 5f8862485df17c6ab87cb8396280f14ab03a3e9b | |
| parent | 719023fb90009855c4515a16349fc6d0a2f93a74 (diff) | |
| download | linux-4209ab098c61b1a9684bb4d3fc287352fc2438c3.tar.bz2 | |
[SPARC64]: Check of_get_property() return in pci_determine_mem_io_space().
If the PCI controller lacks the 'ranges' property nothing
is going to work.
Noticed by Al Viro.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc64/kernel/pci_common.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c index c76bfbb7da08..923e0bcc3bfd 100644 --- a/arch/sparc64/kernel/pci_common.c +++ b/arch/sparc64/kernel/pci_common.c @@ -396,6 +396,13 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm) saw_mem = saw_io = 0; pbm_ranges = of_get_property(pbm->prom_node, "ranges", &i); + if (!pbm_ranges) { + prom_printf("PCI: Fatal error, missing PBM ranges property " + " for %s\n", + pbm->name); + prom_halt(); + } + num_pbm_ranges = i / sizeof(*pbm_ranges); for (i = 0; i < num_pbm_ranges; i++) { |