Avoid ns16550 poll timeout underflow.
authorkaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk>
Fri, 2 Dec 2005 10:05:49 +0000 (11:05 +0100)
committerkaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk>
Fri, 2 Dec 2005 10:05:49 +0000 (11:05 +0100)
commitac70d5694662b32daf215129d9c7d7bb62176c19
treed008d79e5307c393808e1463eb42ba1350c52c86
parent369754a8f680f0e84f2cb0a7070d98b6e01be09b
Avoid ns16550 poll timeout underflow.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
xen/drivers/char/ns16550.c