Re: [PATCH] xen/pci: correct comment of pci_device_detect()

["Chen, Tiejun" <tiejun.chen@intel.com>]

On 2015/5/20 18:06, Jan Beulich wrote:
>>>> On 20.05.15 at 08:53, <tiejun.chen@intel.com> wrote:
>> --- a/xen/drivers/passthrough/pci.c
>> +++ b/xen/drivers/passthrough/pci.c
>> @@ -905,7 +905,7 @@ out:
>>   }
>>
>>   /*
>> - * detect pci device, return 0 if it exists, or return 0
>> + * detect pci device, return 1 if it exists, or return 0
>>    */
>>   int __init pci_device_detect(u16 seg, u8 bus, u8 dev, u8 func)
>
> The comment is pretty pointless, and could go away altogether if
> the function's return type was switched to bool_t. Care to do such

Yeah, I also consider this change initially but I'm not sure if this is 
necessary. Now I think I'd like to follow this.

> an alternative patch (including replacing some of the callers using
> == 0 on the result to use ! instead)?
>

Sure.

Thanks
Tiejun