err may be used uninitialized in mempolicy.c in both compat_set_mempolicy
and compat_mbind.  This patch fixes that by setting them both to 0.
Signed-off-by: Jesse Barnes <jbarnes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>