kfifo: fix kfifo_out_locked race bug
authorStefani Seibold <stefani@seibold.net>
Sat, 16 Jan 2010 01:01:02 +0000 (17:01 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 16 Jan 2010 20:15:37 +0000 (12:15 -0800)
commit7e105057a34c83cea542dacc55ff0528bce67afa
tree2603ae4ef6b310d8a26f779761cff8cfb4815c09
parent33f724eb9e3d6e33aad410318d3ac720fecbdbcd
kfifo: fix kfifo_out_locked race bug

Fix a wrong optimization in include/linux/kfifo.h which could cause a race
in kfifo_out_locked.

Signed-off-by: Stefani Seibold <stefani@seibold.net>
Reported-by: Johan Hovold <jhovold@gmail.com>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/kfifo.h