V4L/DVB (8779): v4l: fix more incorrect video_register_device result checks

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/w9966.c b/drivers/media/video/w9966.c
index 9402f40..2ff00bc 100644
--- a/drivers/media/video/w9966.c
+++ b/drivers/media/video/w9966.c
@@ -334,7 +334,7 @@
 	memcpy(&cam->vdev, &w9966_template, sizeof(struct video_device));
 	cam->vdev.priv = cam;
 
-	if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, video_nr) == -1)
+	if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, video_nr) < 0)
 		return -1;
 
 	w9966_setState(cam, W9966_STATE_VDEV, W9966_STATE_VDEV);