vtop: Fix check on number of arguments

The number of arguments must be three.

Signed-off-by: Yizhan Xu <yizhan.xu@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/vtop.c b/vtop.c
index 7ffcf36..04c7d32 100644
--- a/vtop.c
+++ b/vtop.c
@@ -63,7 +63,7 @@ int main(int argc, char **argv)
 	int process_id;
 	unsigned long long buf, phys;
 
-	if(argc < 2) {
+	if (argc != 3) {
 		printf("require virtual address and pid: 'vtop vaddress pid'\n");
 		return 1;
 	}