tty: Fix termios tty window resize race with pty/tty pair
commita152db71d962f405f7e9be5c818bddf6d1be50a7
authorAlan Cox <alan@lxorguk.ukuu.org.uk>
Tue, 26 Aug 2008 18:55:58 +0000 (26 19:55 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 27 Aug 2008 21:37:09 +0000 (27 14:37 -0700)
treeec9bd5c50f1e925318488d585a8504a552a63f30
parentf753f3272b4d2108d1e4b121ddcde504737a8693
tty: Fix termios tty window resize race with pty/tty pair

Kanru Chen posted a patch versus the old code which deals with the case
where you resize the pty side of a pty/tty pair. In that situation the
termios data is updated for both pty and tty but the locks are not held
for the right side.

This implements the fix differently against the updated tty code. Patch
by self but the hard bit (noticing and fixing the bug) is thanks to Kanru
Chen.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/char/tty_io.c