From: Xin Long <[email protected]>
Date: Tue, 23 Jan 2018 18:22:25 +0800
> Commit 97a6ec4ac021 ("rhashtable: Change rhashtable_walk_start to
> return void") only initialized ret for the first time, when going
> to again path, the next tsp could be NULL. Without resetting ret,
> cb_done would be called with tsp as NULL.
>
> A kernel crash was caused by this when running sctpdiag testcase
> in sctp-tests.
>
> Note that this issue doesn't affect net.git yet.
>
> Fixes: 97a6ec4ac021 ("rhashtable: Change rhashtable_walk_start to return
> void")
> Signed-off-by: Xin Long <[email protected]>
Applied, thanks.
