[Cluster-devel] [PATCH v2 1/3] dlm: check if workqueues are NULL before flushing/destroying

If the DLM lowcomms stack is shut down before any DLM traffic can be generated, flush_workqueue() and destroy_workqueue() can be called on empty send and/or recv workqueues. Insert guard conditionals to only call flush_workqueue() and destroy_workqueue() on workqueues that are not NULL. Signed-of

Re: [Cluster-devel] [PATCH v2 1/3] dlm: check if workqueues are NULL before flushing/destroying

I tried these with one address and had no problem, so I've pushed them to the linux-dlm next branch. Dave