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/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index b7d0be0..f54c784 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1885,7 +1885,7 @@
  * removes applications from the app list if the priority is
  * set to zero.
  */
-u8 dcb_setapp(struct net_device *dev, struct dcb_app *new)
+int dcb_setapp(struct net_device *dev, struct dcb_app *new)
 {
 	struct dcb_app_type *itr;
 	struct dcb_app_type event;