V4L/DVB: "dib3000mc: reduce large stack usage" fix

s/ENODEV/ENOMEM, per Andreas.

This fix got lost when someone merged "dib3000mc: reduce large stack
usage".  Please don't lose fixes.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>