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

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+ 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
> 



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