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tipc: deal with return value of tipc_conn_new callback

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Once tipc_conn_new() returns NULL, the connection should be shut
down immediately, otherwise, oops may happen due to the NULL pointer.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ying Xue 2015-05-04 10:36:48 +08:00 committed by David S. Miller
parent a13683f292
commit 90bdfcb76f
1 changed files with 4 additions and 0 deletions
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4
net/tipc/server.c
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@ -309,6 +309,10 @@ static int tipc_accept_from_sock(struct tipc_conn *con)
/* Notify that new connection is incoming */
newcon->usr_data = s->tipc_conn_new(newcon->conid);
if (!newcon->usr_data) {
sock_release(newsock);
return -ENOMEM;
}
/* Wake up receive process in case of 'SYN+' message */
newsock->sk->sk_data_ready(newsock->sk);