Re: [PATCH 3/7] gnss: add generic serial driver

From: Johan Hovold
Date: Wed Apr 25 2018 - 07:05:31 EST


On Wed, Apr 25, 2018 at 11:00:31AM +0200, Greg Kroah-Hartman wrote:
> On Tue, Apr 24, 2018 at 06:34:54PM +0200, Johan Hovold wrote:
> > +static inline void *gnss_serial_get_drvdata(struct gnss_serial *gserial)
> > +{
> > + return &gserial[1];
> > +}
>
> Oh that's the best hack I have seen in a long time. I need to remember
> that one for next time.
>
> Anyway, in reading this driver, I don't think the module reference
> counting is being handled here, so you might want to add that to the
> gnss core to keep things from going south if modules are unloaded.

As I just mentioned in my reply to your comment about module references
in core, I think I got this covered through the hotplug support. Devices
can go away at anytime, including through a module unload.

Thanks,
Johan