rxrpc: Fix the return value of rxrpc_new_incoming_call()

Dan Carpenter sayeth[1]:

  The patch 5e6ef4f1017c: "rxrpc: Make the I/O thread take over the
  call and local processor work" from Jan 23, 2020, leads to the
  following Smatch static checker warning:

	net/rxrpc/io_thread.c:283 rxrpc_input_packet()
	warn: bool is not less than zero.

Fix this (for now) by changing rxrpc_new_incoming_call() to return an int
with 0 or error code rather than bool.  Note that the actual return value
of rxrpc_input_packet() is currently ignored.  I have a separate patch to
clean that up.

Fixes: 5e6ef4f1017c ("rxrpc: Make the I/O thread take over the call and local processor work")
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: http://lists.infradead.org/pipermail/linux-afs/2022-December/006123.html [1]
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 9 deletions

diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index d1850863507f..c02401656fa9 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -326,11 +326,11 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx,
  * If we want to report an error, we mark the skb with the packet type and
  * abort code and return false.
  */
-bool rxrpc_new_incoming_call(struct rxrpc_local *local,
-			     struct rxrpc_peer *peer,
-			     struct rxrpc_connection *conn,
-			     struct sockaddr_rxrpc *peer_srx,
-			     struct sk_buff *skb)
+int rxrpc_new_incoming_call(struct rxrpc_local *local,
+			    struct rxrpc_peer *peer,
+			    struct rxrpc_connection *conn,
+			    struct sockaddr_rxrpc *peer_srx,
+			    struct sk_buff *skb)
 {
 	const struct rxrpc_security *sec = NULL;
 	struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
@@ -342,7 +342,7 @@ bool rxrpc_new_incoming_call(struct rxrpc_local *local,
 	/* Don't set up a call for anything other than the first DATA packet. */
 	if (sp->hdr.seq != 1 ||
 	    sp->hdr.type != RXRPC_PACKET_TYPE_DATA)
-		return true; /* Just discard */
+		return 0; /* Just discard */
 
 	rcu_read_lock();
 
@@ -413,7 +413,7 @@ bool rxrpc_new_incoming_call(struct rxrpc_local *local,
 	_leave(" = %p{%d}", call, call->debug_id);
 	rxrpc_input_call_event(call, skb);
 	rxrpc_put_call(call, rxrpc_call_put_input);
-	return true;
+	return 0;
 
 unsupported_service:
 	trace_rxrpc_abort(0, "INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,
@@ -425,10 +425,10 @@ no_call:
 reject:
 	rcu_read_unlock();
 	_leave(" = f [%u]", skb->mark);
-	return false;
+	return -EPROTO;
 discard:
 	rcu_read_unlock();
-	return true;
+	return 0;
 }
 
 /*