diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-09-10 14:05:45 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-10 14:05:45 +0200 |
| commit | 3ce9bcb583536c45a46c7302747029450e22279c (patch) | |
| tree | 7a4167189ffc6dc909151d1a5d040f9f0656a9f4 /drivers/char/tty_io.c | |
| parent | 26fd10517e810dd59ea050b052de24a75ee6dc07 (diff) | |
| parent | f7d0b926ac8c8ec0c7a83ee69409bd2e6bb39f81 (diff) | |
Merge branch 'core/xen' into x86/xen
Diffstat (limited to 'drivers/char/tty_io.c')
| -rw-r--r-- | drivers/char/tty_io.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index a27160ba21d7..daeb8f766971 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -2498,7 +2498,7 @@ static int tiocgwinsz(struct tty_struct *tty, struct winsize __user *arg) /** * tty_do_resize - resize event * @tty: tty being resized - * @real_tty: real tty (if using a pty/tty pair) + * @real_tty: real tty (not the same as tty if using a pty/tty pair) * @rows: rows (character) * @cols: cols (character) * @@ -2512,7 +2512,8 @@ int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty, struct pid *pgrp, *rpgrp; unsigned long flags; - mutex_lock(&tty->termios_mutex); + /* For a PTY we need to lock the tty side */ + mutex_lock(&real_tty->termios_mutex); if (!memcmp(ws, &tty->winsize, sizeof(*ws))) goto done; /* Get the PID values and reference them so we can @@ -2533,7 +2534,7 @@ int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty, tty->winsize = *ws; real_tty->winsize = *ws; done: - mutex_unlock(&tty->termios_mutex); + mutex_unlock(&real_tty->termios_mutex); return 0; } |