From: Parthasarathy Bhuvaragan <[email protected]>
Date: Tue, 21 Mar 2017 10:47:49 +0100

> From: Ying Xue <[email protected]>
> 
> Until now, tipc_nametbl_unsubscribe() is called at subscriptions
> reference count cleanup. Usually the subscriptions cleanup is
> called at subscription timeout or at subscription cancel or at
> subscriber delete.
> 
> We have ignored the possibility of this being called from other
> locations, which causes deadlock as we try to grab the
> tn->nametbl_lock while holding it already.
 ...
> In this commit, we advance the calling of tipc_nametbl_unsubscribe()
> from the refcount cleanup to the intended callers.
> 
> Fixes: d094c4d5f5c7 ("tipc: add subscription refcount to avoid invalid 
> delete")
> Reported-by: John Thompson <[email protected]>
> Acked-by: Jon Maloy <[email protected]>
> Signed-off-by: Ying Xue <[email protected]>
> Signed-off-by: Parthasarathy Bhuvaragan 
> <[email protected]>

Applied, thank you.

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