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authorRobert Richter <robert.richter@amd.com>2008-09-24 11:25:31 +0200
committerRobert Richter <robert.richter@amd.com>2008-09-24 11:25:31 +0200
commitf78e80209cf143be49f268c340431ae9fa3abb74 (patch)
tree820fa64b688099dfdd93d27ba03252738ca5c7e2 /drivers/char/tty_io.c
parent4c168eaf7ea39f25a45a3d8c7eebc3fedb633a1d (diff)
parent24342c34a022ee90839873d91396045e12ef1090 (diff)
Merge commit 'v2.6.27-rc5' into tip/oprofile
Conflicts: arch/x86/oprofile/nmi_int.c
Diffstat (limited to 'drivers/char/tty_io.c')
-rw-r--r--drivers/char/tty_io.c7
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;
}