Treat bad command line usage as error

Since we can not tolerate any kind of error which may result in
multicasting failed to run. So even the usage error shall be
treated as error too.

Change-Id: I5483bb2cebf437ed33ebb79eeeac640f8728a73f
Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>

1 files changed, 1 insertions, 1 deletions

diff --git a/code/jasmine/client.c b/code/jasmine/client.c
index 42d996af..20bd3585 100755
--- a/code/jasmine/client.c
+++ b/code/jasmine/client.c
@@ -255,7 +255,7 @@ int main(int argc, char *argv[])
 
     if (argc < 3) {
         printf("Usage: %s <local_ip> <server_ip> [port]\n", argv[0]);
-        return 0;
+        return -1;
     }
 
     if (!inet_aton(argv[1], &local_addr)) {