[SPARC]: Fix EBUS use of uninitialized variable.
If of_get_property() fails, it returns NULL and the 'len'
parameter is undefined. So we need to explicitly set len
to zero in such cases.
Noticed by Al Viro.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
index e2d02fd..d850785 100644
--- a/arch/sparc/kernel/ebus.c
+++ b/arch/sparc/kernel/ebus.c
@@ -156,6 +156,8 @@
dev->prom_node = dp;
regs = of_get_property(dp, "reg", &len);
+ if (!regs)
+ len = 0;
if (len % sizeof(struct linux_prom_registers)) {
prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
dev->prom_node->name, len,