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authorCyrill Gorcunov <gorcunov@gmail.com>2007-11-21 02:32:19 +0100
committerDavid S. Miller <davem@sunset.davemloft.net>2007-12-05 14:37:59 +0100
commit75c6d1410caa6fea861ef3802e8b186f7685f235 (patch)
tree1ffd0155b9fd658df6e63c907aa2da642c0ee39b /arch/sparc64/kernel/pci_sun4v.c
parent[SPARC]: Add missing "space" (diff)
downloadlinux-75c6d1410caa6fea861ef3802e8b186f7685f235.tar.xz
linux-75c6d1410caa6fea861ef3802e8b186f7685f235.zip
[SPARC64]: check for possible NULL pointer dereference
This patch adds checking for possible NULL pointer dereference if of_find_property() failed. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/pci_sun4v.c')
-rw-r--r--arch/sparc64/kernel/pci_sun4v.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index 8c4875bdb4a8..e587a372f3fe 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -1022,6 +1022,10 @@ void __init sun4v_pci_init(struct device_node *dp, char *model_name)
}
prop = of_find_property(dp, "reg", NULL);
+ if (!prop) {
+ prom_printf("SUN4V_PCI: Could not find config registers\n");
+ prom_halt();
+ }
regs = prop->value;
devhandle = (regs->phys_addr >> 32UL) & 0x0fffffff;