rxrpc: terminate retrans loop when sending of skb fails

Typo, 'stop' is never set to true.
Seems intent is to not attempt to retransmit more packets after sendmsg
returns an error.

This change is based on code inspection only.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c
index c6be17a..4040418 100644
--- a/net/rxrpc/ar-ack.c
+++ b/net/rxrpc/ar-ack.c
@@ -218,7 +218,8 @@
 	struct rxrpc_header *hdr;
 	struct sk_buff *txb;
 	unsigned long *p_txb, resend_at;
-	int loop, stop;
+	bool stop;
+	int loop;
 	u8 resend;
 
 	_enter("{%d,%d,%d,%d},",
@@ -226,7 +227,7 @@
 	       atomic_read(&call->sequence),
 	       CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
 
-	stop = 0;
+	stop = false;
 	resend = 0;
 	resend_at = 0;
 
@@ -255,7 +256,7 @@
 			_proto("Tx DATA %%%u { #%d }",
 			       ntohl(sp->hdr.serial), ntohl(sp->hdr.seq));
 			if (rxrpc_send_packet(call->conn->trans, txb) < 0) {
-				stop = 0;
+				stop = true;
 				sp->resend_at = jiffies + 3;
 			} else {
 				sp->resend_at =