tty: Replace open-coded tty_get_pgrp()

Replace open-coded instances of tty_get_pgrp().

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 3d71642b18ad..6bf5f44d215e 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2324,18 +2324,14 @@ static int tiocgwinsz(struct tty_struct *tty, struct winsize __user *arg)
 int tty_do_resize(struct tty_struct *tty, struct winsize *ws)
 {
         struct pid *pgrp;
-        unsigned long flags;
 
         /* Lock the tty */
         mutex_lock(&tty->winsize_mutex);
         if (!memcmp(ws, &tty->winsize, sizeof(*ws)))
                 goto done;
-        /* Get the PID values and reference them so we can
-           avoid holding the tty ctrl lock while sending signals */
-        spin_lock_irqsave(&tty->ctrl_lock, flags);
-        pgrp = get_pid(tty->pgrp);
-        spin_unlock_irqrestore(&tty->ctrl_lock, flags);
 
+        /* Signal the foreground process group */
+        pgrp = tty_get_pgrp(tty);
         if (pgrp)
                 kill_pgrp(pgrp, SIGWINCH, 1);
         put_pid(pgrp);