diff --git a/arch/mips/generic/yamon-dt.c b/arch/mips/generic/yamon-dt.c
index a3aa22c77cadc2507eaff4b067cd34ff62ab1618..a07a5edbcda780f7d22d51833356ee6109da8404 100644
--- a/arch/mips/generic/yamon-dt.c
+++ b/arch/mips/generic/yamon-dt.c
@@ -75,7 +75,7 @@ static unsigned int __init gen_fdt_mem_array(
 __init int yamon_dt_append_memory(void *fdt,
 				  const struct yamon_mem_region *regions)
 {
-	unsigned long phys_memsize, memsize;
+	unsigned long phys_memsize = 0, memsize;
 	__be32 mem_array[2 * MAX_MEM_ARRAY_ENTRIES];
 	unsigned int mem_entries;
 	int i, err, mem_off;