dcb: fix return type on dcb_setapp()

Incorrect return type on dcb_setapp() this routine
returns negative error codes. All call sites of
dcb_setapp() assign the return value to an int already
so no need to update drivers.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/dcbnl.h b/include/net/dcbnl.h
index c14fd94..d5bbb79 100644
--- a/include/net/dcbnl.h
+++ b/include/net/dcbnl.h
@@ -28,7 +28,7 @@
 	struct list_head  list;
 };
 
-u8 dcb_setapp(struct net_device *, struct dcb_app *);
+int dcb_setapp(struct net_device *, struct dcb_app *);
 u8 dcb_getapp(struct net_device *, struct dcb_app *);
 int dcb_ieee_setapp(struct net_device *, struct dcb_app *);
 int dcb_ieee_delapp(struct net_device *, struct dcb_app *);