Re: [PATCH v2] usb: dwc3: Runtime get and put usb power_supply handle

From: Kyle Tso
Date: Sun Aug 04 2024 - 05:01:12 EST


On Fri, Aug 2, 2024 at 3:55 PM Kyle Tso <kyletso@xxxxxxxxxx> wrote:
>
> On Fri, Jul 26, 2024 at 8:28 PM Kyle Tso <kyletso@xxxxxxxxxx> wrote:
> >
> > It is possible that the usb power_supply is registered after the probe
> > of dwc3. In this case, trying to get the usb power_supply during the
> > probe will fail and there is no chance to try again. Also the usb
> > power_supply might be unregistered at anytime so that the handle of it
> > in dwc3 would become invalid. To fix this, get the handle right before
> > calling to power_supply functions and put it afterward.
> >
> > Fixes: 6f0764b5adea ("usb: dwc3: add a power supply for current control")
> > Cc: stable@xxxxxxxxxxxxxxx
> > Signed-off-by: Kyle Tso <kyletso@xxxxxxxxxx>
> > ---
> > v1 -> v2:
> > - move power_supply_put out of interrupt context
> >
>
> Hi maintainers,
>
> It seems that there are some problems in version 2. I will send out
> version 3 later.
>
> Kyle

version 3 sent

https://lore.kernel.org/all/20240804084612.2561230-1-kyletso@xxxxxxxxxx/

Kyle