Hello,

I fixed this in a local tree for a customer half a year ago (mvl-3.1)
and forgot to report it to the lists. Now I came across it in vanilla
2.5.10-rc3. I have not tested the fix but it is pretty obvious that
access with a non-volatile pointer to hardware is bad, at least with
gcc-3 or above.

Please apply. Or ignore if already fixed. =)

Thanks.

/ magnus (needs CC)