linux-kernel - [PATCH v3 14/19] tty: Move tty_ldisc

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Date:	Sun, 10 Jan 2016 22:41:03 -0800
From:	Peter Hurley <peter@...leysoftware.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Jiri Slaby <jslaby@...e.cz>, linux-kernel@...r.kernel.org,
	Peter Hurley <peter@...leysoftware.com>
Subject: [PATCH v3 14/19] tty: Move tty_ldisc_kill()

In preparation for destroying the line discipline instance on hangup,
move tty_ldisc_kill() to eliminate needless forward declarations.
No functional change.

Signed-off-by: Peter Hurley <peter@...leysoftware.com>
---
 drivers/tty/tty_ldisc.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 5115230..d91122d 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -603,6 +603,25 @@ err:
 }
 
 /**
+ *	tty_ldisc_kill	-	teardown ldisc
+ *	@tty: tty being released
+ *
+ *	Perform final close of the ldisc and reset tty->ldisc
+ */
+static void tty_ldisc_kill(struct tty_struct *tty)
+{
+	if (!tty->ldisc)
+		return;
+	/*
+	 * Now kill off the ldisc
+	 */
+	tty_ldisc_close(tty, tty->ldisc);
+	tty_ldisc_put(tty->ldisc);
+	/* Force an oops if we mess this up */
+	tty->ldisc = NULL;
+}
+
+/**
  *	tty_reset_termios	-	reset terminal state
  *	@tty: tty to reset
  *
@@ -749,19 +768,6 @@ int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty)
 	return 0;
 }
 
-static void tty_ldisc_kill(struct tty_struct *tty)
-{
-	if (!tty->ldisc)
-		return;
-	/*
-	 * Now kill off the ldisc
-	 */
-	tty_ldisc_close(tty, tty->ldisc);
-	tty_ldisc_put(tty->ldisc);
-	/* Force an oops if we mess this up */
-	tty->ldisc = NULL;
-}
-
 /**
  *	tty_ldisc_release		-	release line discipline
  *	@tty: tty being shut down (or one end of pty pair)
-- 
2.7.0