Hi,

In pt_bar_mapping function, r->addr should not be changed by invalid
value(-1).
This value(-1) causes failure of mapping BAR when I/O Space or Memory
Space enable bit is updated repeatedly by native windows driver.

This situation occurs in Windows Vista guest.

Attached patch fixes this problem.


Signed-off-by: Naoki Nishiguchi <nisiguti@jp.fujitsu.com>

Regards,
Naoki Nishiguchi