If the loop times out then we want to exit with "to" set to zero, but in
the current code it's set to -1.
Fixes: c575b7eeb89f ("drm/xen-front: Add support for Xen PV display frontend")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 378cb7ce0db5..3345ac71b391 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -778,7 +778,7 @@ static int xen_drv_remove(struct xenbus_device *dev)
*/
while ((xenbus_read_unsigned(front_info->xb_dev->otherend, "state",
XenbusStateUnknown) != XenbusStateInitWait) &&
- to--)
+ --to)
msleep(10);
if (!to) {
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