[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>
diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c
index c76bfbb..923e0bc 100644
--- a/arch/sparc64/kernel/pci_common.c
+++ b/arch/sparc64/kernel/pci_common.c
@@ -396,6 +396,13 @@
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++) {