linux-kernel - Re: [PATCH -next] drm/amdgpu: fix error return code in amdgpu_amdkfd_gpuvm_create_process

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Date:   Tue, 24 Apr 2018 12:10:28 +0300
From:   Oded Gabbay <oded.gabbay@...il.com>
To:     Wei Yongjun <weiyongjun1@...wei.com>
Cc:     Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Felix Kuehling <Felix.Kuehling@....com>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH -next] drm/amdgpu: fix error return code in amdgpu_amdkfd_gpuvm_create_process_vm()

On Wed, Mar 28, 2018 at 4:20 PM, Wei Yongjun <weiyongjun1@...wei.com> wrote:
> Fix to return error code -ENOMEM from the eviction fence create fail
> error handling case instead of 0, as done elsewhere in this function.
>
> Fixes: a46a2cd103a8 ("drm/amdgpu: Add GPUVM memory management functions for KFD")
> Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> index a12a165..c5c9c6f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> @@ -846,6 +846,7 @@ int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, void **vm,
>                                                    current->mm);
>                 if (!info->eviction_fence) {
>                         pr_err("Failed to create eviction fence\n");
> +                       ret = -ENOMEM;
>                         goto create_evict_fence_fail;
>                 }
>

Thanks, but not relevant as the code moved to a different function and
it already contains the line you added.

Oded