Commit 3364d61c authored Apr 24, 2017 by Parthasarathy Bhuvaragan Committed by David S. Miller Apr 25, 2017

tipc: fix socket flow control accounting error at tipc_send_stream



Until now in tipc_send_stream(), we return -1 when the socket
encounters link congestion even if the socket had successfully
sent partial data. This is incorrect as the application resends
the same the partial data leading to data corruption at
receiver's end.

In this commit, we return the partially sent bytes as the return
value at link congestion.

Fixes: 10724cc7 ("tipc: redesign connection-level flow control")
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b7d6df57

net/tipc/socket.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1083,7 +1083,7 @@ static int __tipc_sendstream(struct socket sock, struct msghdr m, size_t dlen)
		}
		} while (sent < dlen && !rc);

		return rc ? rc : sent;
		return sent ? sent : rc;
		}

		/**

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