X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fs390%2Fkvm%2Fvirtio_ccw.c;h=d6297176ab85b8b306eb69be685dfba811ae35ba;hb=2ecd1aba597726c9053ba1a112e3d8fdc5ca08ff;hp=779dc5136291610f28361b7386151cc1bb4b9372;hpb=f755407dd19072b7d20719bc5454caed9ab41cc1;p=~andy%2Flinux

diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c
index 779dc513629..d6297176ab8 100644
--- a/drivers/s390/kvm/virtio_ccw.c
+++ b/drivers/s390/kvm/virtio_ccw.c
@@ -162,7 +162,7 @@ static inline long do_kvm_notify(struct subchannel_id schid,
 	return __rc;
 }
 
-static void virtio_ccw_kvm_notify(struct virtqueue *vq)
+static bool virtio_ccw_kvm_notify(struct virtqueue *vq)
 {
 	struct virtio_ccw_vq_info *info = vq->priv;
 	struct virtio_ccw_device *vcdev;
@@ -171,6 +171,9 @@ static void virtio_ccw_kvm_notify(struct virtqueue *vq)
 	vcdev = to_vc_device(info->vq->vdev);
 	ccw_device_get_schid(vcdev->cdev, &schid);
 	info->cookie = do_kvm_notify(schid, vq->index, info->cookie);
+	if (info->cookie < 0)
+		return false;
+	return true;
 }
 
 static int virtio_ccw_read_vq_conf(struct virtio_ccw_device *vcdev,