On Sat, Dec 10, 2016 at 11:04 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
>> + list_for_each_entry(fb, &file_priv->fbs, filp_head) {
>> + count++;
>> + if (count > card_res->count_fbs)
>> + continue;
>> +
>> + if (put_user(fb->base.id, fb_id + count)) {
>
> In this style increment of count has to happen after the copy.
>
> i.e.
> if (count < card_res->count_fbs &&
> put_user(fb->base.id, fb_id + count) {
> mutex_unlock()
> return -EFAULT;
> }
> count++;
Note I also have > instead of <, so I think it should be equivalent.
Oops except for the connector lop, silly me that lost one.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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