Re: [PATCH] drm/amdgpu: release allocated memory

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Am 21.09.19 um 00:49 schrieb Navid Emamdoost:
> In amdgpu_vmid_grab_idle, fences is being leaked in one execution path.
> The missing kfree was added.

NAK, the array is freed by the dma_fence_array.  This is a double free.

Regards,
Christian.

>
> Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
> index 57b3d8a9bef3..9063cd36fa94 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
> @@ -244,6 +244,7 @@ static int amdgpu_vmid_grab_idle(struct amdgpu_vm *vm,
>   		r = amdgpu_sync_fence(adev, sync, &array->base, false);
>   		dma_fence_put(ring->vmid_wait);
>   		ring->vmid_wait = &array->base;
> +		kfree(fences);
>   		return r;
>   	}
>   	kfree(fences);

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