[PATCH net v1 1/1] tipc: use only positive error codes in messages

[Parthasarathy Bhuvaragan]

In commit e3a77561e7d32 ("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: e3a77561e7d32 ("tipc: split up function tipc_msg_eval()")
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvara...@ericsson.com>
---
 net/tipc/msg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 6ef379f004ac..121e59a1d0e7 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -551,7 +551,7 @@ bool tipc_msg_lookup_dest(struct net *net, struct sk_buff 
*skb, int *err)
                return false;
        if (msg_errcode(msg))
                return false;
-       *err = -TIPC_ERR_NO_NAME;
+       *err = TIPC_ERR_NO_NAME;
        if (skb_linearize(skb))
                return false;
        msg = buf_msg(skb);
-- 
2.1.4