This patch cleans up the DMI handling so that multiple interfaces can be
reported from the DMI tables and so that the DMI slave address can be
transferred up to the upper layer.  It also adds an option to specify the
slave address as an init parm and removes some unnecessary initializers.

This patch also adds inc/dec usecount functions for the SMIs so they can
modify the usecounts of modules they use (added because the SMB driver uses
the I2C code).
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>