Merge tag 'arc-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

[karo-tx-linux.git] / drivers / tty / n_tty.c

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 20932cc9c8f71681038bf5e505fec87d9c402280..b09023b071696c2a5d25e003dcff798b42235602 100644 (file)
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -343,8 +343,7 @@ static void n_tty_packet_mode_flush(struct tty_struct *tty)
                spin_lock_irqsave(&tty->ctrl_lock, flags);
                tty->ctrl_status |= TIOCPKT_FLUSHREAD;
                spin_unlock_irqrestore(&tty->ctrl_lock, flags);
-               if (waitqueue_active(&tty->link->read_wait))
-                       wake_up_interruptible(&tty->link->read_wait);
+               wake_up_interruptible(&tty->link->read_wait);
        }
 }
 
@@ -1382,8 +1381,7 @@ handle_newline:
                        put_tty_queue(c, ldata);
                        smp_store_release(&ldata->canon_head, ldata->read_head);
                        kill_fasync(&tty->fasync, SIGIO, POLL_IN);
-                       if (waitqueue_active(&tty->read_wait))
-                               wake_up_interruptible_poll(&tty->read_wait, POLLIN);
+                       wake_up_interruptible_poll(&tty->read_wait, POLLIN);
                        return 0;
                }
        }
@@ -1667,8 +1665,7 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
 
        if ((read_cnt(ldata) >= ldata->minimum_to_wake) || L_EXTPROC(tty)) {
                kill_fasync(&tty->fasync, SIGIO, POLL_IN);
-               if (waitqueue_active(&tty->read_wait))
-                       wake_up_interruptible_poll(&tty->read_wait, POLLIN);
+               wake_up_interruptible_poll(&tty->read_wait, POLLIN);
        }
 }
 
@@ -1887,10 +1884,8 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
        }
 
        /* The termios change make the tty ready for I/O */
-       if (waitqueue_active(&tty->write_wait))
-               wake_up_interruptible(&tty->write_wait);
-       if (waitqueue_active(&tty->read_wait))
-               wake_up_interruptible(&tty->read_wait);
+       wake_up_interruptible(&tty->write_wait);
+       wake_up_interruptible(&tty->read_wait);
 }
 
 /**