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tipc: use only positive error codes in messages
In commite3a77561e7
("tipc: split up function tipc_msg_eval()"), we have updated the function tipc_msg_lookup_dest() to set the error codes to negative values at destination lookup failures. Thus when the function sets the error code to -TIPC_ERR_NO_NAME, its inserted into the 4 bit error field of the message header as 0xf instead of TIPC_ERR_NO_NAME (1). The value 0xf is an unknown error code. In this commit, we set only positive error code. Fixes:e3a77561e7
("tipc: split up function tipc_msg_eval()") Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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5a59a3a0ef
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@ -551,7 +551,7 @@ bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err)
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return false;
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if (msg_errcode(msg))
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return false;
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*err = -TIPC_ERR_NO_NAME;
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*err = TIPC_ERR_NO_NAME;
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if (skb_linearize(skb))
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return false;
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msg = buf_msg(skb);
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