On 2018-03-15 10:50 AM, [email protected] wrote:
> From: Mikita Lipski <[email protected]>
> 
> Disable irq on devices before destroying them. That prevents
> use-after-free memory access when unloading the driver.
> 
> Signed-off-by: Mikita Lipski <[email protected]>
> Reviewed-by: Alex Deucher <[email protected]>

Acked-by: Harry Wentland <[email protected]>

Harry

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c 
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index b4911911..0b798cb 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -1432,6 +1432,9 @@ static int amdgpu_device_ip_fini(struct amdgpu_device 
> *adev)
>       int i, r;
>  
>       amdgpu_amdkfd_device_fini(adev);
> +     /* disable all interrupts */
> +     amdgpu_irq_disable_all(adev);
> +
>       /* need to disable SMC first */
>       for (i = 0; i < adev->num_ip_blocks; i++) {
>               if (!adev->ip_blocks[i].status.hw)
> @@ -1482,8 +1485,6 @@ static int amdgpu_device_ip_fini(struct amdgpu_device 
> *adev)
>               adev->ip_blocks[i].status.hw = false;
>       }
>  
> -     /* disable all interrupts */
> -     amdgpu_irq_disable_all(adev);
>  
>       for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
>               if (!adev->ip_blocks[i].status.sw)
> 
_______________________________________________
amd-gfx mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Reply via email to