[Karmic] Fix kernel crash with jfs

[Tim Gardner]

Stefan Bader wrote:
> 
> Just found the solution to that nasty bug#396780 which is caused by jfs
> releasing some acl before returning. The patch has been verified to be
> working
> and I will submit it upstream ASAP.
> 

Run this by Al Viro 'cause I'm not grokking the semantics of
posix_acl_release().

rtg

-- 
Tim Gardner tim.gardner at canonical.com