>> +static inline pid_t pid_nr(struct pid *pid)
>> +{
>> + pid_t nr = 0;
>> + if (pid)
>> + nr = pid->nr;
>> + return nr;
>> +}
>
>When is it valid to be passing around a NULL 'struct pid *'?
Is 0 even the right thing to return in the rare case that pid == NULL?
-1 maybe?
Jan Engelhardt
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