Maarten Maathuis wrote:
> On Tue, Feb 23, 2010 at 6:59 AM, Dave Airlie <airl...@gmail.com> wrote:
>
>> On Sat, Feb 20, 2010 at 12:22 PM, Maarten Maathuis <madman2...@gmail.com>
>> wrote:
>>
>>> - Without this change I get a general protection fault.
>>> - Also use PTR_ERR where applicable.
>>>
>> I just want to make sure I understand, but really the only bit of this
>> patch that matters is:
>>
>>
>>> @@ -556,9 +559,10 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file
>>> *persistant_swap_storage)
>>> if (unlikely(from_page == NULL))
>>> continue;
>>> to_page = read_mapping_page(swap_space, i, NULL);
>>> - if (unlikely(to_page == NULL))
>>> + if (unlikely(IS_ERR(to_page))) {
>>>
>> ^^ these two lines where we are testing for NULL but should be
>> checking for an error?
>>
>
> Yes, that's the critical bit. As you can see we were already doing
> this for ttm_tt_swapin.
>
>
>>> + ret = PTR_ERR(to_page);
>>> goto out_err;
>>> -
>>> + }
>>>
>> If that is true and the rest is just nice cleanups then I'm okay with it,.
>>
>> Reviewed-by: Dave Airlie <airl...@redhat.com>
>>
>> I'll need Thomas's ack on this also.
>>
>> Dave.
>>
Acked-by: Thomas Hellstrom <thellst...@vmware.com>
/Thomas
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