From: Vegard Nossum <vegard.nossum@xxxxxxxxxx>
Date: Sat, 23 Jul 2016 09:42:35 +0200
> I was seeing a lot of these:
...
> Apparently we always need to call rhashtable_walk_stop(), even when
> rhashtable_walk_start() fails:
>
> * rhashtable_walk_start - Start a hash table walk
> * @iter: Hash table iterator
> *
> * Start a hash table walk. Note that we take the RCU lock in all
> * cases including when we return an error. So you must always call
> * rhashtable_walk_stop to clean up.
>
> otherwise we never call rcu_read_unlock() and we get the splat above.
>
> See-also: 53fa1036 ("sctp: fix some rhashtable functions using in sctp proc/diag")
> See-also: f2dba9c6 ("rhashtable: Introduce rhashtable_walk_*")
> Cc: Xin Long <lucien.xin@xxxxxxxxx>
> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Vegard Nossum <vegard.nossum@xxxxxxxxxx>
Applied and queued up for -stable, thanks.
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