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authorJiri Slaby <jslaby@suse.cz>2011-11-16 16:27:08 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2011-11-26 09:09:58 -0800
commit57ee681901463f23076fa730c7aa1c4cee63952e (patch)
treeb5a9bc46890394643a6fa741ecd62dbf4a017a04 /drivers/tty
parentf8b8a240e2879d9680238e27953cdc0c7f88131f (diff)
TTY: ldisc, move wait idle to caller
commit 300420722e0734a4254f3b634e0f82664495d210 upstream. It is the only place where reinit is called from. And we really need to wait for the old ldisc to go once. Actually this is the place where the waiting originally was (before removed and re-added later). This will make the fix in the following patch easier to implement. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Dave Young <hidave.darkstar@gmail.com> Cc: Dave Jones <davej@redhat.com> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Dmitriy Matrosov <sgf.dma@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/tty_ldisc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 363d5689a842..ba59b0a1fe42 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -764,8 +764,6 @@ static int tty_ldisc_reinit(struct tty_struct *tty, int ldisc)
if (IS_ERR(ld))
return -1;
- WARN_ON_ONCE(tty_ldisc_wait_idle(tty, 5 * HZ));
-
tty_ldisc_close(tty, tty->ldisc);
tty_ldisc_put(tty->ldisc);
tty->ldisc = NULL;
@@ -849,6 +847,8 @@ void tty_ldisc_hangup(struct tty_struct *tty)
it means auditing a lot of other paths so this is
a FIXME */
if (tty->ldisc) { /* Not yet closed */
+ WARN_ON_ONCE(tty_ldisc_wait_idle(tty, 5 * HZ));
+
if (reset == 0) {
if (!tty_ldisc_reinit(tty, tty->termios->c_line))