diff options
| author | Mark Goodwin | 2005-04-25 13:05:08 -0700 |
|---|---|---|
| committer | Tony Luck | 2005-04-25 13:05:08 -0700 |
| commit | f1e2a1c8a1fe16db5f4a7c0c1551d6e1b97dcbb2 (patch) | |
| tree | b85b5659b94cdb1f656f11f4761fe0836c011076 /arch/ia64/sn | |
| parent | 4a5c13c7eb0d55bfd2cf3100c55f1e3d8df37576 (diff) | |
[IA64-SGI] Altix SN topology fix potential infinite loop
Fix infinite loop if sn_hwperf_location_to_bpos() fails.
Signed-off-by: Mark Goodwin <markgw@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/sn')
| -rw-r--r-- | arch/ia64/sn/kernel/sn2/sn_hwperf.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c index 3bff99130d5e..e731fcb95f90 100644 --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c @@ -300,14 +300,15 @@ static int sn_topology_show(struct seq_file *s, void *d) * PCI busses attached to this node, if any */ do { - if (!(pci_topo_buf = vmalloc(pci_topo_buf_len))) { - printk("sn_topology_show: kmalloc failed\n"); + if (sn_hwperf_location_to_bpos(obj->location, + &rack, &bay, &slot, &slab)) { break; } - if (sn_hwperf_location_to_bpos(obj->location, - &rack, &bay, &slot, &slab) != 0) - continue; + if (!(pci_topo_buf = vmalloc(pci_topo_buf_len))) { + printk("sn_topology_show: vmalloc failed\n"); + break; + } e = ia64_sn_ioif_get_pci_topology(rack, bay, slot, slab, pci_topo_buf, pci_topo_buf_len); @@ -325,6 +326,7 @@ static int sn_topology_show(struct seq_file *s, void *d) break; case SN_HWPERF_OP_OK: + default: /* export pci bus info */ print_pci_topology(s, obj, &pci_bus_ordinal, pci_topo_buf, pci_topo_buf_len); |