svn commit: r268163 - in user/jceel/soc2014_evdev/head/sys: conf dev/evdev

[Hans Petter Selasky]

On 07/02/14 18:00, Jakub Klama wrote:
> On Wed, 02 Jul 2014 17:44:13 +0200, Hans Petter Selasky wrote:
>> On 07/02/14 17:40, Jakub Wojciech Klama wrote:
>>> +static int
>>> +uinput_poll(struct cdev *dev, int events, struct thread *td)
>>> +{
>>> +    struct uinput_cdev_state *state;
>>> +    int ret;
>>> +    int revents = 0;
>>> +
>>> +    debugf("cdev: poll by thread %d", td->td_tid);
>>> +
>>> +    ret = devfs_get_cdevpriv((void **)&state);
>>> +    if (ret != 0)
>>> +        return (ret);
>>
>> Hi,
>>
>> In case of error "poll" returns POLLNVAL, I think.
>
> Hm... POLLNVAL or rather POLLERR?
>

Hi,

Search for POLLNVAL in "kern/sys_generic.c" and you'll see why.

POLLNVAL is used if the file descriptor is no longer valid. POLLERR is 
something else.

--HPS