linux-kernel - Re: [PATCH 38/39] iommu/amd: drop null test before destroy functions

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Date:	Tue, 29 Sep 2015 15:41:19 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	sergey.senozhatsky@...il.com, kernel-janitors@...r.kernel.org,
	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 38/39] iommu/amd: drop null test before destroy functions

On Sun, Sep 13, 2015 at 02:15:31PM +0200, Julia Lawall wrote:
> Remove unneeded NULL test.
> 
> The semantic patch that makes this change is as follows:
> (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@ expression x; @@
> -if (x != NULL) {
>   \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
>   x = NULL;
> -}
> // </smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
> 
> ---
>  drivers/iommu/amd_iommu_init.c |    7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)

Applied, thanks.

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