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Commit 4209ab09 authored by David S. Miller's avatar David S. Miller
Browse files

[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: default avatarDavid S. Miller <davem@davemloft.net>
parent 719023fb

arch/sparc64/kernel/pci_common.c

+7 −0
Original line number Original line Diff line number Diff line
@@ -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++) {