mhz is now a long long.
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index b2bd3f1..ddcd009 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -82,7 +82,8 @@
 static unsigned long long get_host_hz(void)
 {
 	char mhzline[16], *end;
-	int ret, mult, mhz, rest, len;
+	unsigned long long mhz;
+	int ret, mult, rest, len;
 
 	ret = cpu_feature("cpu MHz", mhzline, 
 			  sizeof(mhzline) / sizeof(mhzline[0]));