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* [PATCH] drm/ttm: fix missing NULL check in the new page pool
@ 2020-11-06 14:10 Christian König
  2020-11-09 15:54 ` Alex Deucher
  0 siblings, 1 reply; 3+ messages in thread
From: Christian König @ 2020-11-06 14:10 UTC (permalink / raw)
  To: andy.lavr, dri-devel

The pool parameter can be NULL if we free through the shrinker.

Signed-off-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/ttm/ttm_pool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
index 44ec41aa78d6..1b96780b4989 100644
--- a/drivers/gpu/drm/ttm/ttm_pool.c
+++ b/drivers/gpu/drm/ttm/ttm_pool.c
@@ -135,7 +135,7 @@ static void ttm_pool_free_page(struct ttm_pool *pool, enum ttm_caching caching,
 		set_pages_wb(p, 1 << order);
 #endif
 
-	if (!pool->use_dma_alloc) {
+	if (!pool || !pool->use_dma_alloc) {
 		__free_pages(p, order);
 		return;
 	}
-- 
2.25.1

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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH] drm/ttm: fix missing NULL check in the new page pool
  2020-11-06 14:10 [PATCH] drm/ttm: fix missing NULL check in the new page pool Christian König
@ 2020-11-09 15:54 ` Alex Deucher
  2020-11-10  7:30   ` Martin Peres
  0 siblings, 1 reply; 3+ messages in thread
From: Alex Deucher @ 2020-11-09 15:54 UTC (permalink / raw)
  To: Christian König; +Cc: andy.lavr, Maling list - DRI developers

On Fri, Nov 6, 2020 at 9:10 AM Christian König
<ckoenig.leichtzumerken@gmail.com> wrote:
>
> The pool parameter can be NULL if we free through the shrinker.
>
> Signed-off-by: Christian König <christian.koenig@amd.com>

Does this fix:
https://gitlab.freedesktop.org/drm/amd/-/issues/1362

Acked-by: Alex Deucher <alexander.deucher@amd.com>



> ---
>  drivers/gpu/drm/ttm/ttm_pool.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
> index 44ec41aa78d6..1b96780b4989 100644
> --- a/drivers/gpu/drm/ttm/ttm_pool.c
> +++ b/drivers/gpu/drm/ttm/ttm_pool.c
> @@ -135,7 +135,7 @@ static void ttm_pool_free_page(struct ttm_pool *pool, enum ttm_caching caching,
>                 set_pages_wb(p, 1 << order);
>  #endif
>
> -       if (!pool->use_dma_alloc) {
> +       if (!pool || !pool->use_dma_alloc) {
>                 __free_pages(p, order);
>                 return;
>         }
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] drm/ttm: fix missing NULL check in the new page pool
  2020-11-09 15:54 ` Alex Deucher
@ 2020-11-10  7:30   ` Martin Peres
  0 siblings, 0 replies; 3+ messages in thread
From: Martin Peres @ 2020-11-10  7:30 UTC (permalink / raw)
  To: Alex Deucher, Christian König
  Cc: andy.lavr, Maling list - DRI developers

On 09/11/2020 17:54, Alex Deucher wrote:
> On Fri, Nov 6, 2020 at 9:10 AM Christian König
> <ckoenig.leichtzumerken@gmail.com> wrote:
>>
>> The pool parameter can be NULL if we free through the shrinker.
>>
>> Signed-off-by: Christian König <christian.koenig@amd.com>
> 
> Does this fix:
> https://gitlab.freedesktop.org/drm/amd/-/issues/1362

It does! So you can add my:

Tested-by: Martin Peres <martin.peres@mupuf.org>
Acked-by: Martin Peres <martin.peres@mupuf.org>

Thanks,
Martin

> 
> Acked-by: Alex Deucher <alexander.deucher@amd.com>
> 
> 
> 
>> ---
>>   drivers/gpu/drm/ttm/ttm_pool.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
>> index 44ec41aa78d6..1b96780b4989 100644
>> --- a/drivers/gpu/drm/ttm/ttm_pool.c
>> +++ b/drivers/gpu/drm/ttm/ttm_pool.c
>> @@ -135,7 +135,7 @@ static void ttm_pool_free_page(struct ttm_pool *pool, enum ttm_caching caching,
>>                  set_pages_wb(p, 1 << order);
>>   #endif
>>
>> -       if (!pool->use_dma_alloc) {
>> +       if (!pool || !pool->use_dma_alloc) {
>>                  __free_pages(p, order);
>>                  return;
>>          }
>> --
>> 2.25.1
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
> 
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-11-10  7:30 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-11-06 14:10 [PATCH] drm/ttm: fix missing NULL check in the new page pool Christian König
2020-11-09 15:54 ` Alex Deucher
2020-11-10  7:30   ` Martin Peres

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