diff --git a/[refs] b/[refs]
index 8a8ecc0cfe7b..a974350d096a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5a772b2b3c68e7e0b503c5a48469113bb0634314
+refs/heads/master: d988ff94c1074c4c914235c8591bcceafb585ecf
diff --git a/trunk/kernel/trace/ring_buffer_benchmark.c b/trunk/kernel/trace/ring_buffer_benchmark.c
index 7d3aef93c49f..8d68e149a8b3 100644
--- a/trunk/kernel/trace/ring_buffer_benchmark.c
+++ b/trunk/kernel/trace/ring_buffer_benchmark.c
@@ -294,6 +294,12 @@ static void ring_buffer_producer(void)
 
 		pr_info("Total iterations per millisec: %ld\n", hit + missed);
 
+		/* it is possible that hit + missed will overflow and be zero */
+		if (!(hit + missed)) {
+			pr_info("hit + missed overflowed and totalled zero!\n");
+			hit--; /* make it non zero */
+		}
+
 		/* Caculate the average time in nanosecs */
 		avg = NSEC_PER_MSEC / (hit + missed);
 		pr_info("%ld ns per entry\n", avg);