> + tport = &state->port;
> + if (!(tport->flags & ASYNC_INITIALIZED) && port->ops->poll_init) {
> + mutex_lock(&tport->mutex);
> + ret = port->ops->poll_init(port);
> + /*
> + * We don't set ASYNCB_INITIALIZED as we only initialized the
> + * hw, e.g. state->xmit is still uninitialized.
> + */
> + mutex_unlock(&tport->mutex);
> + if (ret)
> + return ret;
> + }
What stops a parallel open or close changing ASYNC_INITIALIZED after you
test and before you lock ?
Alan
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