Re: [RFC][PATCH 2/5] mm/mempool: allow NULL `pool' pointer in mempool_destroy()

From: David Rientjes
Date: Wed Jun 17 2015 - 19:21:12 EST

On Tue, 9 Jun 2015, Sergey Senozhatsky wrote:

> mempool_destroy() does not tolerate a NULL mempool_t pointer
> argument and performs a NULL-pointer dereference. This requires
> additional attention and effort from developers/reviewers and
> forces all mempool_destroy() callers to do a NULL check
> if (pool)
> mempool_destroy(pool);
> Or, otherwise, be invalid mempool_destroy() users.
> Tweak mempool_destroy() and NULL-check the pointer there.
> Proposed by Andrew Morton.
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
> Reported-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> LKML-reference:

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

I like how your patch series is enabling us to remove many lines from the
source code. But doing s/Reported-by/Suggested-by/ can also make your
changelog two lines shorter ;)
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