Re: [PATCH 13/18] ipu3-cio2: Add functionality allowing software_node connections to sensors on platforms designed for Windows

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 01/12/2020 22:08, Dan Scally wrote:
>>> +
>>> +		for_each_acpi_dev_match(adev, this_device, NULL, -1) {
>>> +			if (!adev || !(adev->status.present && adev->status.enabled))
>> 			if (!adev || !adev->status.present || !adev->status.enabled))
>>
>> may be a bit more readable. Does for_each_acpi_dev_match() return NULL
>> devices though ? If no, you could drop the !adev check. You may also be
>> able to drop the !present check, as I don't think ACPI allows !present
>> && enabled.
> You're right, the spec mandates enabled be 0 if present is 0. The
> iterator will return NULL when the previous return value was the last
> matching device, so that part needs to stay, but it can become:
>
> if (!adev || !adev->status.enabled)
>
Wait, that's silly, the loop won't start if the check is null so you're
right of course.



[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux