On 5/13/2024 2:26 PM, Ma Jun wrote:
> Check ras_manager before using it
>
> Signed-off-by: Ma Jun <Jun.Ma2@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
> index 1dd13ed3b7b5..6da02a209890 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
> @@ -2172,12 +2172,17 @@ static void amdgpu_ras_interrupt_process_handler(struct work_struct *work)
> int amdgpu_ras_interrupt_dispatch(struct amdgpu_device *adev,
> struct ras_dispatch_if *info)
> {
> - struct ras_manager *obj = amdgpu_ras_find_obj(adev, &info->head);
> - struct ras_ih_data *data = &obj->ih_data;
> + struct ras_manager *obj;
> + struct ras_ih_data *data;
>
> + obj = amdgpu_ras_find_obj(adev, &info->head);
> if (!obj)
> return -EINVAL;
>
> + data = &obj->ih_data;
> + if (!data)
> + return -EINVAL;
This check is not needed. ih_data is declared as below in ras_manager.
struct ras_ih_data ih_data;
Thanks,
Lijo
> +
> if (data->inuse == 0)
> return 0;
>
