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Re: [PATCH] drm/amdgpu: Delete an unnecessary check before the function call "kfree"

From Alex Deucher <alexdeucher@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH] drm/amdgpu: Delete an unnecessary check before the function call "kfree"
Date 2015-06-29 17:40 +0200
Message-ID <pGJk6-77K-35@gated-at.bofh.it> (permalink)
References (13 earlier) <mSsDN-4wa-61@gated-at.bofh.it> <mSsDN-4wa-63@gated-at.bofh.it> <mSsDN-4wa-65@gated-at.bofh.it> <mSsDN-4wa-33@gated-at.bofh.it> <pGgrL-7JT-5@gated-at.bofh.it>
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On Sun, Jun 28, 2015 at 4:45 AM, SF Markus Elfring
<elfring@users.sourceforge.net> wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sun, 28 Jun 2015 10:27:35 +0200
>
> The kfree() function tests whether its argument is NULL and then
> returns immediately. Thus the test around the call is not needed.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

I already have the same patch from Maninder Singh.

Thanks!

Alex

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index fec487d..a85cd08 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -1575,8 +1575,7 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
>         amdgpu_fence_driver_fini(adev);
>         amdgpu_fbdev_fini(adev);
>         r = amdgpu_fini(adev);
> -       if (adev->ip_block_enabled)
> -               kfree(adev->ip_block_enabled);
> +       kfree(adev->ip_block_enabled);
>         adev->ip_block_enabled = NULL;
>         adev->accel_working = false;
>         /* free i2c buses */
> --
> 2.4.4
>
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> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
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Re: [PATCH] drm/amdgpu: Delete an unnecessary check before the  function call "kfree" Alex Deucher <alexdeucher@gmail.com> - 2015-06-29 17:40 +0200

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