Subject: Re: [RFC][PATCH] wireless: ath9k: Convert from timespecs to ktime_t

From: John Stultz <[email-masked]>
Date: Wed, 30 Jul 2014 17:39:08 -0700

On 07/30/2014 05:27 PM, Stephen Rothwell wrote:
> Hi John,
>
> One obvious thing ...
>
> On Wed, 30 Jul 2014 17:01:05 -0700 John Stultz
<[email-masked]> wrote:
>>
>> diff --git a/drivers/net/wireless/ath/ath9k/hw.c
b/drivers/net/wireless/ath/ath9k/hw.c
>> index fd0158f..d15f48e 100644
>> --- a/drivers/net/wireless/ath/ath9k/hw.c
>> +++ b/drivers/net/wireless/ath/ath9k/hw.c
>> @@ -1731,19 +1731,14 @@ fail:
>>      return -EINVAL;
>>  }
>> 
>> -u32 ath9k_hw_get_tsf_offset(struct timespec *last, struct timespec *cur)
>> +u32 ath9k_hw_get_tsf_offset(ktime_t *last, ktime_t *cur)
>>  {
>> -    struct timespec ts;
>>      s64 usec;
>> 
>> -    if (!cur) {
>> -        getrawmonotonic(&ts);
>> -        cur = &ts;
>> -    }
>> -
>> -    usec = cur->tv_sec * 1000000ULL + cur->tv_nsec / 1000;
>> -    usec -= last->tv_sec * 1000000ULL + last->tv_nsec / 1000;
>> +    if (!cur)
>> +        *cur = ktime_get_raw();
>
> You are assigning through a NULL pointer here ...
Gah. That's embarrassing. Thank you. I'll fix that up.

thanks
john