tree bf485a8f67b2e5860fefab58eecb77a7f0d254c5
parent 0d69a052d4d7c4085706b9ac0d1bd28ff90c9fca
author Benjamin Herrenschmidt <benh@kernel.crashing.org> 1162354299 +1100
committer Paul Mackerras <paulus@samba.org> 1162354564 +1100

[POWERPC] Make alignment exception always check exception table

The alignment exception used to only check the exception table for
-EFAULT, not for other errors. That opens an oops window if we can
coerce the kernel into getting an alignment exception for other reasons
in what would normally be a user-protected accessor, which can be done
via some of the futex ops. This fixes it by always checking the
exception tables.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>