[DCCP]: Reduce the number of writable states

Since DCCP requires to close both ends of a connection simultaneously,
permission to write in state DCCP_CLOSING is removed in dccp_sendmsg():
 * if the sending end closed, it would encounter a write error anyhow; 
 * if the other end has closed the connection, it accepts no more data.

Signed-off-by: Gerrit Renker <[EMAIL PROTECTED]>
---
 net/dccp/proto.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -674,7 +674,7 @@ int dccp_sendmsg(struct kiocb *iocb, str
         * so that the trick in dccp_rcv_request_sent_state_process.
         */
        /* Wait for a connection to finish. */
-       if ((1 << sk->sk_state) & ~(DCCPF_OPEN | DCCPF_PARTOPEN | 
DCCPF_CLOSING))
+       if ((1 << sk->sk_state) & ~(DCCPF_OPEN | DCCPF_PARTOPEN))
                if ((rc = sk_stream_wait_connect(sk, &timeo)) != 0)
                        goto out_release;
 
-
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