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[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>
This commit is contained in:
David S. Miller 2007-10-15 20:45:32 -07:00
parent 719023fb90
commit 4209ab098c
1 changed files with 7 additions and 0 deletions
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7
arch/sparc64/kernel/pci_common.c
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@ -396,6 +396,13 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
saw_mem = saw_io = 0; saw_mem = saw_io = 0;
pbm_ranges = of_get_property(pbm->prom_node, "ranges", &i); 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); num_pbm_ranges = i / sizeof(*pbm_ranges);
for (i = 0; i < num_pbm_ranges; i++) { for (i = 0; i < num_pbm_ranges; i++) {