Re: [PATCH] net: tun: Remove redundant null checks before kfree

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On Wed, Nov 30, 2022 at 9:57 PM Simon Horman <simon.horman@xxxxxxxxxxxx> wrote:
>
> + Thierry Reding, linux-tegra, dri-devel
>
> On Tue, Nov 29, 2022 at 04:43:29PM +0800, zys.zljxml@xxxxxxxxx wrote:
> > From: Yushan Zhou <katrinzhou@xxxxxxxxxxx>
> >
> > Fix the following coccicheck warning:
> > ./drivers/gpu/host1x/fence.c:97:2-7: WARNING:
> > NULL check before some freeing functions is not needed.
> >
> > Signed-off-by: Yushan Zhou <katrinzhou@xxxxxxxxxxx>
>
> Hi,
>
> the change in the patch looks good to me.
> However, it does not appear to be a networking patch,
> so I think you have sent it to the wrong place.
>
> With reference to:
>
> $ ./scripts/get_maintainer.pl drivers/gpu/host1x/fence.c
> Thierry Reding <thierry.reding@xxxxxxxxx> (supporter:DRM DRIVERS FOR NVIDIA TEGRA)
> David Airlie <airlied@xxxxxxxxx> (maintainer:DRM DRIVERS)
> Daniel Vetter <daniel@xxxxxxxx> (maintainer:DRM DRIVERS)
> Sumit Semwal <sumit.semwal@xxxxxxxxxx> (maintainer:DMA BUFFER SHARING FRAMEWORK)
> "Christian König" <christian.koenig@xxxxxxx> (maintainer:DMA BUFFER SHARING FRAMEWORK)
> dri-devel@xxxxxxxxxxxxxxxxxxxxx (open list:DRM DRIVERS FOR NVIDIA TEGRA)
> linux-tegra@xxxxxxxxxxxxxxx (open list:DRM DRIVERS FOR NVIDIA TEGRA)
> linux-kernel@xxxxxxxxxxxxxxx (open list)
> linux-media@xxxxxxxxxxxxxxx (open list:DMA BUFFER SHARING FRAMEWORK)
> linaro-mm-sig@xxxxxxxxxxxxxxxx (moderated list:DMA BUFFER SHARING FRAMEWORK)
>
> And https://lore.kernel.org/dri-devel/39c44dce203112a8dfe279e8e2c4ad164e3cf5e5.1666275461.git.robin.murphy@xxxxxxx/
>
> I would suggest that the patch subject should be:
>
>  [PATCH] gpu: host1x: Remove redundant null check before kfree
>
> And you should send it:
>
>   To: Thierry Reding <thierry.reding@xxxxxxxxx>
>   Cc: linux-tegra@xxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx
>
> > ---
> >  drivers/gpu/host1x/fence.c | 3 +--
> >  1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/host1x/fence.c b/drivers/gpu/host1x/fence.c
> > index ecab72882192..05b36bfc8b74 100644
> > --- a/drivers/gpu/host1x/fence.c
> > +++ b/drivers/gpu/host1x/fence.c
> > @@ -93,8 +93,7 @@ static void host1x_syncpt_fence_release(struct dma_fence *f)
> >  {
> >         struct host1x_syncpt_fence *sf = to_host1x_fence(f);
> >
> > -       if (sf->waiter)
> > -               kfree(sf->waiter);
> > +       kfree(sf->waiter);
> >
> >         dma_fence_free(f);
> >  }
> > --
> > 2.27.0
> >

Apologies for the mistake... I'll resend it to the correct place.
Thanks for your reminder, anyway.

Best,
Katrin




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