From: David Howells Date: Mon, 4 Apr 2016 13:00:39 +0000 (+0100) Subject: rxrpc: Fix handling of connection failure in client call creation X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d1e858c5a392a50c16ce36624203032bdeb3595b;p=linux-beck.git rxrpc: Fix handling of connection failure in client call creation If rxrpc_connect_call() fails during the creation of a client connection, there are two bugs that we can hit that need fixing: (1) The call state should be moved to RXRPC_CALL_DEAD before the call cleanup phase is invoked. If not, this can cause an assertion failure later. (2) call->link should be reinitialised after being deleted in rxrpc_new_client_call() - which otherwise leads to a failure later when the call cleanup attempts to delete the link again. Signed-off-by: David Howells --- diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c index ad933daae13b..6223a7ed831f 100644 --- a/net/rxrpc/call_object.c +++ b/net/rxrpc/call_object.c @@ -425,9 +425,10 @@ error: rxrpc_put_call(call); write_lock_bh(&rxrpc_call_lock); - list_del(&call->link); + list_del_init(&call->link); write_unlock_bh(&rxrpc_call_lock); + call->state = RXRPC_CALL_DEAD; rxrpc_put_call(call); _leave(" = %d", ret); return ERR_PTR(ret); @@ -439,6 +440,7 @@ error: */ found_user_ID_now_present: write_unlock(&rx->call_lock); + call->state = RXRPC_CALL_DEAD; rxrpc_put_call(call); _leave(" = -EEXIST [%p]", call); return ERR_PTR(-EEXIST);