[PATCH] drm/amdgpu: Avoid RAS recovery init when no RAS support.

[Zhang, Hawking]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking

Sent from my iPhone

> On Sep 9, 2019, at 10:49, Andrey Grodzovsky <andrey.grodzovsky at amd.com> wrote:
> 
> Fixes driver load regression on APUs.
> 
> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
> index d2437e1..119bedc 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
> @@ -1494,9 +1494,14 @@ static int amdgpu_ras_release_bad_pages(struct amdgpu_device *adev)
> int amdgpu_ras_recovery_init(struct amdgpu_device *adev)
> {
>    struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
> -    struct ras_err_handler_data **data = &con->eh_data;
> +    struct ras_err_handler_data **data;
>    int ret;
> 
> +    if (con)
> +        data = &con->eh_data;
> +    else
> +        return 0;
> +
>    *data = kmalloc(sizeof(**data), GFP_KERNEL | __GFP_ZERO);
>    if (!*data) {
>        ret = -ENOMEM;
> -- 
> 2.7.4
> 
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