Input: xen-kbdfront - fix mouse getting stuck after save/restore

[karo-tx-linux.git] / drivers / input / misc / xen-kbdfront.c

diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index 7077f9bf5ead88a15eb65699e71d00e49715fc84..62bae99424e6e436defda3723654816c44be2609 100644 (file)
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -303,7 +303,7 @@ static void xenkbd_backend_changed(struct xenbus_device *dev,
                                   enum xenbus_state backend_state)
 {
        struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
-       int val;
+       int ret, val;
 
        switch (backend_state) {
        case XenbusStateInitialising:
@@ -316,6 +316,17 @@ static void xenkbd_backend_changed(struct xenbus_device *dev,
 
        case XenbusStateInitWait:
 InitWait:
+               ret = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+                                  "feature-abs-pointer", "%d", &val);
+               if (ret < 0)
+                       val = 0;
+               if (val) {
+                       ret = xenbus_printf(XBT_NIL, info->xbdev->nodename,
+                                           "request-abs-pointer", "1");
+                       if (ret)
+                               pr_warning("xenkbd: can't request abs-pointer");
+               }
+
                xenbus_switch_state(dev, XenbusStateConnected);
                break;