[PATCH net 2/6] rxrpc: Need to flag call as being released on connect failure

From: David Howells
Date: Tue Aug 09 2016 - 12:33:33 EST


If rxrpc_new_client_call() fails to make a connection, the call record that
it allocated needs to be marked as RXRPC_CALL_RELEASED before it is passed
to rxrpc_put_call() to indicate that it no longer has any attachment to the
AF_RXRPC socket.

Without this, an assertion failure may occur at:

net/rxrpc/call_object:635

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---

net/rxrpc/call_object.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index e8c953c48cb8..ae057e0740f3 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -275,6 +275,7 @@ error:
list_del_init(&call->link);
write_unlock_bh(&rxrpc_call_lock);

+ set_bit(RXRPC_CALL_RELEASED, &call->flags);
call->state = RXRPC_CALL_DEAD;
rxrpc_put_call(call);
_leave(" = %d", ret);
@@ -287,6 +288,7 @@ error:
*/
found_user_ID_now_present:
write_unlock(&rx->call_lock);
+ set_bit(RXRPC_CALL_RELEASED, &call->flags);
call->state = RXRPC_CALL_DEAD;
rxrpc_put_call(call);
_leave(" = -EEXIST [%p]", call);