Add break when parse -O option

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/usemem.c b/usemem.c
index b014b6b..4ea7189 100644
--- a/usemem.c
+++ b/usemem.c
@@ -1050,6 +1050,7 @@ int main(int argc, char *argv[])
 
 		case 'O':
 			map_anonymous = MAP_ANONYMOUS;
+			break;
 
 		case 'U':
 			map_hugetlb = MAP_HUGETLB | MAP_HUGE_2MB;