X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=drivers%2Ftty%2Ftty_ioctl.c;h=1445dd39aa6227ab641130ef7344eaba9f113b86;hb=ee0c1a65cf95230d5eb3d9de94fd2ead9a428c67;hp=9c5aebfe7053cbcae1fd65a95f3312509525e8e6;hpb=d86a2fe4dc97cbbad04f5db941d9a1bb82e22b5f;p=linux-2.6-block.git

diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 9c5aebfe7053..1445dd39aa62 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -1147,16 +1147,12 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
 			spin_unlock_irq(&tty->flow_lock);
 			break;
 		case TCIOFF:
-			down_read(&tty->termios_rwsem);
 			if (STOP_CHAR(tty) != __DISABLED_CHAR)
 				retval = tty_send_xchar(tty, STOP_CHAR(tty));
-			up_read(&tty->termios_rwsem);
 			break;
 		case TCION:
-			down_read(&tty->termios_rwsem);
 			if (START_CHAR(tty) != __DISABLED_CHAR)
 				retval = tty_send_xchar(tty, START_CHAR(tty));
-			up_read(&tty->termios_rwsem);
 			break;
 		default:
 			return -EINVAL;