[PATCH v2] selftests: mptcp: always close input's FD if opened

[Liu Jing <liujing@xxxxxxxxxxxxxxxxxxxx>]

in main_loop_s function, when the open(cfg_input, O_RDONLY) function is run,
the last fd is not closed if the "--cfg_repeat > 0" branch is not taken.

Fixes: 05be5e273c84("selftests: mptcp: add disconnect tests").

Signed-off-by: Liu Jing <liujing@xxxxxxxxxxxxxxxxxxxx>
---
Changes from v1
- add close function in main_loop_s function
---
 tools/testing/selftests/net/mptcp/mptcp_connect.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c
index d2043ec3bf6d..48b7389ae75b 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -1119,7 +1119,8 @@ int main_loop_s(int listensock)
 		if (cfg_input)
 			close(fd);
 		goto again;
-	}
+	} else
+		close(fd);
 
 	return 0;
 }
-- 
2.33.0