agetty: check ioctl() return value [coverity: CID 503786]

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/agetty-cmd/tty.c b/agetty-cmd/tty.c
index 38a963658921bc163614b949d37a0eb924e10245..b75fef733e046986b48219e3adb9c35945ac5b2d 100644 (file)
--- a/agetty-cmd/tty.c
+++ b/agetty-cmd/tty.c
@@ -387,7 +387,8 @@ void agetty_termio_init(struct agetty_options *op, struct termios *tp)
                sleep(1);
        }
        memset(&lock, 0, sizeof(struct termios));
-       ioctl(STDIN_FILENO, TIOCSLCKTRMIOS, &lock);
+       if (ioctl(STDIN_FILENO, TIOCSLCKTRMIOS, &lock))
+               debug("unlock termios failed\n");
 #endif
 
        if (op->flags & F_VCONSOLE) {