Re: [PATCH 28/39] ecryptfs: drop null test before destroy functions

From: Julia Lawall
Date: Tue Sep 15 2015 - 00:36:40 EST




On Mon, 14 Sep 2015, Tyler Hicks wrote:

> On 2015-09-13 14:15:21, 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);
> > // </smpl>
> >
> > Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> Acked-by: Tyler Hicks <tyhicks@xxxxxxxxxxxxx>
>
> I assume that you'll be landing this patch set into Linus' tree all
> together. Let me know if that's incorrect and I should take this single
> patch into the eCryptfs dev tree.

I'm not doing anythign after this point. Some others have taken the patch
into their trees.

julia

>
> Thanks!
>
> Tyler
>
> >
> > ---
> > fs/ecryptfs/main.c | 3 +--
> > 1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
> > index 4f4d047..e83f31c 100644
> > --- a/fs/ecryptfs/main.c
> > +++ b/fs/ecryptfs/main.c
> > @@ -737,8 +737,7 @@ static void ecryptfs_free_kmem_caches(void)
> > struct ecryptfs_cache_info *info;
> >
> > info = &ecryptfs_cache_infos[i];
> > - if (*(info->cache))
> > - kmem_cache_destroy(*(info->cache));
> > + kmem_cache_destroy(*(info->cache));
> > }
> > }
> >
> >
>
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