V4L/DVB (4257): Fix 64-bit compile warnings.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/include/media/cx2341x.h b/include/media/cx2341x.h
index 074c400..e1cbf79 100644
--- a/include/media/cx2341x.h
+++ b/include/media/cx2341x.h
@@ -89,7 +89,7 @@
 		struct v4l2_queryctrl *qctrl);
 const char **cx2341x_ctrl_get_menu(u32 id);
 int cx2341x_ext_ctrls(struct cx2341x_mpeg_params *params,
-		struct v4l2_ext_controls *ctrls, int cmd);
+		struct v4l2_ext_controls *ctrls, unsigned int cmd);
 void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p);
 void cx2341x_log_status(struct cx2341x_mpeg_params *p, int cardid);