staging: dgap: fix a few more sparse warnings

This patch fixes a few more sparse warnings related to __iomem
version 2 excludes a change that actually caused a new sparse
warning.

Signed-off-by: Mark Hounschell <markh@compro.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed