lkml.org 
[lkml]   [2019]   [Mar]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v3 10/12] hikey960: Support usb functionality of Hikey960
From
Date
hi,

On Mon, 2019-03-04 at 08:50 +0200, Andy Shevchenko wrote:
> On Mon, Mar 4, 2019 at 3:47 AM Chunfeng Yun <chunfeng.yun@mediatek.com> wrote:
> > On Sat, 2019-03-02 at 17:05 +0800, Yu Chen wrote:
>
> > > + hisi_hikey_usb->role_sw = usb_role_switch_get(dev);
> > > + if (!hisi_hikey_usb->role_sw)
> > > + return -EPROBE_DEFER;
> > Here return EPROBE_DEFFER means the related device_connection is
> > registered after this probe is called, right?
> > if not, use IS_ERR_OR_NULL then return PTR_ERR is enough
>
> How enough? If return value is NULL it would be transformered to 0,
> which is success return code from the ->probe() which means we will
> have ->probed() and not functional device.
>
You are right:)

> Am I missing something?
>


\
 
 \ /
  Last update: 2019-03-04 07:59    [W:0.072 / U:0.036 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site