pci-assign: Harden I/O port test
Markus Armbruster points out that we're missing a < 0 check
from pread while trying to probe for pci-sysfs io-port
resource support. We don't expect a short read, but we
should harden the test to abort if we get one so we're not
potentially looking at a stale errno.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
(cherry picked from commit 1d1c8a498b7ce5c5636f1014f7ad18aa4e1acc0a)
Signed-off-by: Andreas Färber <afaerber@suse.de>
1 file changed
