[AF_RXRPC]: Return the number of bytes buffered in rxrpc_send_data()

Return the number of bytes buffered in rxrpc_send_data().

Signed-off-by: David Howells <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/rxrpc/ar-output.c

···
 			goto efault;
 		sp->remain -= copy;
 		skb->mark += copy;
+		copied += copy;
 
 		len -= copy;
 		segment -= copy;
···
 
 	} while (segment > 0);
 
+success:
+	ret = copied;
 out:
 	call->tx_pending = skb;
 	_leave(" = %d", ret);
···
 
 maybe_error:
 	if (copied)
-		ret = copied;
+		goto success;
 	goto out;
 
 efault: