Re: [PATCH 1/2] usb: typec: mux: Take care of driver module reference counting

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On Thu, Sep 20, 2018 at 02:26:28PM +0300, Heikki Krogerus wrote:
> On Thu, Sep 20, 2018 at 01:20:03PM +0200, Greg KH wrote:
> > On Wed, Sep 19, 2018 at 10:58:04AM +0300, Heikki Krogerus wrote:
> > > Functions typec_mux_get() and typec_switch_get() already
> > > make sure that the mux device reference count is
> > > incremented, but the same must be done to the driver module
> > > as well to prevent the drivers from being unloaded in the
> > > middle of operation.
> > > 
> > > This fixes a potential "BUG: unable to handle kernel paging
> > > request at ..." from happening.
> > > 
> > > Fixes: 93dd2112c7b2 ("usb: typec: mux: Get the mux identifier from function parameter")
> > > Cc: <stable@xxxxxxxxxxxxxxx>
> > 
> > Why is this flagged for stable? 93dd2112c7b2 went into 4.19-rc1 and has
> > not been backported anywhere else.
> > 
> > confused,
> 
> Sorry, it should not have the stable tag. Shall I resend these?

No need, I'll handle it, thanks.

greg k-h



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