test(vsock): wait before exit-ing in check_guest_connections

Even if one child process failed, still call `wait` to ensure all other
child vsock_helper processes also exit, to ensure clean socket
teardown/etc.

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

tests/framework/utils_vsock.py

@@ -180,7 +180,7 @@ def check_guest_connections(vm, server_port_path, blob_path, blob_hash):
     cmd += "  ({})& ".format(worker_cmd)
     cmd += '  workers="$workers $!";'
     cmd += "done;"
-    cmd += "for w in $workers; do wait $w || exit 1; done"
+    cmd += "for w in $workers; do wait $w || (wait; exit 1); done"
 
     ecode, _, stderr = vm.ssh.run(cmd)
     echo_server.terminate()