X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=drivers%2Ftty%2Ftty_io.c;h=d3e71331641bcf267a5ebee49083f6c277cadb0b;hb=8f166e00196fcb16364c9c39dab6fe7b72e63f18;hp=16a2c0237dd60a06513e2ad1f616e13a7bd71c0b;hpb=f1bfbd984b4e2177886507b6a0ec5faeb6d7c217;p=linux-2.6-block.git

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 16a2c0237dd6..d3e71331641b 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1024,14 +1024,12 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
 }
 
 static void tty_write_unlock(struct tty_struct *tty)
-	__releases(&tty->atomic_write_lock)
 {
 	mutex_unlock(&tty->atomic_write_lock);
 	wake_up_interruptible_poll(&tty->write_wait, POLLOUT);
 }
 
 static int tty_write_lock(struct tty_struct *tty, int ndelay)
-	__acquires(&tty->atomic_write_lock)
 {
 	if (!mutex_trylock(&tty->atomic_write_lock)) {
 		if (ndelay)
@@ -2705,23 +2703,17 @@ static int tty_tiocgicount(struct tty_struct *tty, void __user *arg)
 	return 0;
 }
 
-struct tty_struct *tty_pair_get_tty(struct tty_struct *tty)
+/*
+ * if pty, return the slave side (real_tty)
+ * otherwise, return self
+ */
+static struct tty_struct *tty_pair_get_tty(struct tty_struct *tty)
 {
 	if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
 	    tty->driver->subtype == PTY_TYPE_MASTER)
 		tty = tty->link;
 	return tty;
 }
-EXPORT_SYMBOL(tty_pair_get_tty);
-
-struct tty_struct *tty_pair_get_pty(struct tty_struct *tty)
-{
-	if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
-	    tty->driver->subtype == PTY_TYPE_MASTER)
-	    return tty;
-	return tty->link;
-}
-EXPORT_SYMBOL(tty_pair_get_pty);
 
 /*
  * Split this up, as gcc can choke on it otherwise..