[PATCH] aacraid: resolve compiler warnings using ptrdiff_t

["Salyzyn, Mark" <mark_salyzyn@xxxxxxxxxxx>]

Unsigned long is not always the same size as a pointer, namely on 32 bit
systems with 64 bit address space. Ptrdiff_t is the same size as a
pointer in all configurations. By using ptrdiff_t we can mitigate the
warning messages on these configurations. There should be no side
effects of this patch.

ObligatoryDisclaimer: Please accept my condolences regarding Outlook's
handling of patches attachments.

This attached patch is against current scsi-misc-2.6

Signed-off-by: Mark Salyzyn <aacraid@xxxxxxxxxxx>

Attachment: aacraid_ptrdiff.patch
Description: aacraid_ptrdiff.patch