alpha: fix copy_from_user()
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 17 Aug 2016 20:02:32 +0000 (16:02 -0400)
committerBen Hutchings <ben@decadent.org.uk>
Sun, 20 Nov 2016 01:01:37 +0000 (01:01 +0000)
commit 2561d309dfd1555e781484af757ed0115035ddb3 upstream.

it should clear the destination even when access_ok() fails.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
arch/alpha/include/asm/uaccess.h

Simple merge