From: Markus Lidel <Markus.Lidel@shadowconnect.com>

- use compat_ptr to convert 32-bit pointer to 64-bit pointer in
  i2o_cfg_passthru32.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>