linux-kernel - Re: [PATCH][next] drm/amdkfd: remove redundant initialization to variable r

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Date:   Thu, 22 Apr 2021 15:43:50 -0400
From:   Felix Kuehling <felix.kuehling@....com>
To:     Colin King <colin.king@...onical.com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] drm/amdkfd: remove redundant initialization to
 variable r

Am 2021-04-22 um 8:44 a.m. schrieb Colin King:
> From: Colin Ian King <colin.king@...onical.com>
>
> The variable r is being initialized with a value that is never read
> and it is being updated later with a new value. The initialization is
> redundant and can be removed.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
Applied to amd-staging-drm-next.

Thanks,
  Felix


> ---
>  drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> index d44a46eb00d6..a66b67083d83 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> @@ -303,7 +303,7 @@ svm_migrate_copy_to_vram(struct amdgpu_device *adev, struct svm_range *prange,
>  	uint64_t vram_addr;
>  	uint64_t offset;
>  	uint64_t i, j;
> -	int r = -ENOMEM;
> +	int r;
>  
>  	pr_debug("svms 0x%p [0x%lx 0x%lx]\n", prange->svms, prange->start,
>  		 prange->last);