Setting err and going to ldst_done just returns 0, without using err, so
just return 0 directly. We already do that for other call sites in this
function.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
[mpe: Rewrite change log]
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>