From 949aa64ff90d9a9b3aae13bb5a8247614adf4600 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Wed, 5 Nov 2014 12:12:57 -0500 Subject: [PATCH] tty: Fold pty pair handling into tty_flush_works() Perform work flush for both ends of a pty pair within tty_flush_works(), rather than calling twice. Reviewed-by: Alan Cox Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_io.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index ffa31c671a64..f5b62b99489d 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1584,15 +1584,19 @@ void tty_free_termios(struct tty_struct *tty) EXPORT_SYMBOL(tty_free_termios); /** - * tty_flush_works - flush all works of a tty - * @tty: tty device to flush works for + * tty_flush_works - flush all works of a tty/pty pair + * @tty: tty device to flush works for (or either end of a pty pair) * - * Sync flush all works belonging to @tty. + * Sync flush all works belonging to @tty (and the 'other' tty). */ static void tty_flush_works(struct tty_struct *tty) { flush_work(&tty->SAK_work); flush_work(&tty->hangup_work); + if (tty->link) { + flush_work(&tty->link->SAK_work); + flush_work(&tty->link->hangup_work); + } } /** @@ -1892,8 +1896,6 @@ int tty_release(struct inode *inode, struct file *filp) /* Wait for pending work before tty destruction commmences */ tty_flush_works(tty); - if (o_tty) - tty_flush_works(o_tty); #ifdef TTY_DEBUG_HANGUP printk(KERN_DEBUG "%s: %s: freeing structure...\n", __func__, tty_name(tty, buf)); -- 2.20.1