[PATCH v2] drm/amdgpu: Fix out-of-bounds write warning

[Christian König]

Am 06.05.24 um 07:59 schrieb Ma Jun:
> Check the ring type value to fix the out-of-bounds
> write warning
>
> Signed-off-by: Ma Jun <Jun.Ma2 at amd.com>
> Suggested-by: Christian König <christian.koenig at amd.com>

Reviewed-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> index 15c240656470..ad49cecb20b8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
> @@ -352,7 +352,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
>   	ring->max_dw = max_dw;
>   	ring->hw_prio = hw_prio;
>   
> -	if (!ring->no_scheduler) {
> +	if (!ring->no_scheduler && ring->funcs->type < AMDGPU_HW_IP_NUM) {
>   		hw_ip = ring->funcs->type;
>   		num_sched = &adev->gpu_sched[hw_ip][hw_prio].num_scheds;
>   		adev->gpu_sched[hw_ip][hw_prio].sched[(*num_sched)++] =