tty: Redo current tty locking

[deliverable/linux.git] / drivers / s390 / char / fs3270.c

diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index d18e6d2e0b49dbac1f63d8a62483326ea7a1dea7..84fbc90480dcb858f310b6fdfab4403a110e4ca3 100644 (file)
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -430,11 +430,13 @@ fs3270_open(struct inode *inode, struct file *filp)
                mutex_lock(&tty_mutex);
                tty = get_current_tty();
                if (!tty || tty->driver->major != IBM_TTY3270_MAJOR) {
+                       tty_kref_put(tty);
                        mutex_unlock(&tty_mutex);
                        rc = -ENODEV;
                        goto out;
                }
                minor = tty->index + RAW3270_FIRSTMINOR;
+               tty_kref_put(tty);
                mutex_unlock(&tty_mutex);
        }
        /* Check if some other program is already using fullscreen mode. */