Re: [PATCH] usbnet: prevent device rpm suspend in usbnet_probe function

From: Kai-Heng Feng
Date: Tue Nov 08 2016 - 02:46:11 EST


Hi,

On Mon, Nov 7, 2016 at 7:02 PM, Oliver Neukum <oneukum@xxxxxxxx> wrote:
> On Fri, 2016-11-04 at 17:57 +0800, Kai-Heng Feng wrote:
>> Sometimes cdc_mbim failed to probe if runtime pm is enabled:
>> [ 9.305626] cdc_mbim: probe of 2-2:1.12 failed with error -22
>>
>> This can be solved by increase its pm usage counter.
>>
>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
>
> For the record:
>
> NAK. This fixes a symptom. If this patch helps something is broken in
> device core. We need to find that.
>

Please check attached dmesg with usbcore.dyndbg="+p".

Thanks!

> Regards
> Oliver
>
>

Attachment: dmesg
Description: Binary data