uml: user of helper_wait() got missed when it got extra arguments

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/um/drivers/harddog_user.c

@@ -79,14 +79,14 @@ int start_watchdog(int *in_fd_ret, int *out_fd_ret, char *sock)
 	n = read(in_fds[0], &c, sizeof(c));
 	if (n == 0) {
 		printk("harddog_open - EOF on watchdog pipe\n");
-		helper_wait(pid);
+		helper_wait(pid, 1, NULL);
 		err = -EIO;
 		goto out_close_out;
 	}
 	else if (n < 0) {
 		printk("harddog_open - read of watchdog pipe failed, "
 		       "err = %d\n", errno);
-		helper_wait(pid);
+		helper_wait(pid, 1, NULL);
 		err = n;
 		goto out_close_out;
 	}