diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 49c1a22..e94bee0 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1215,10 +1215,11 @@
 
 	if (!tty->pgrp) {
 		printk(KERN_WARNING "tty_check_change: tty->pgrp == NULL!\n");
-		goto out;
+		goto out_unlock;
 	}
 	if (task_pgrp(current) == tty->pgrp)
-		goto out;
+		goto out_unlock;
+	spin_unlock_irqrestore(&tty->ctrl_lock, flags);
 	if (is_ignored(SIGTTOU))
 		goto out;
 	if (is_current_pgrp_orphaned()) {
@@ -1229,6 +1230,8 @@
 	set_thread_flag(TIF_SIGPENDING);
 	ret = -ERESTARTSYS;
 out:
+	return ret;
+out_unlock:
 	spin_unlock_irqrestore(&tty->ctrl_lock, flags);
 	return ret;
 }