On Fri, 22 Mar 2019, Tony Lindgren wrote: > If ohci-platform is runtime suspended, we can currently get an "imprecise > external abort" on reboot with ohci-platform loaded when PM runtime > is implemented for the SoC. > > Let's fix this by adding PM runtime support to usb_hcd_platform_shutdown. > > Signed-off-by: Tony Lindgren <[email protected]> > --- > drivers/usb/core/hcd.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c > --- a/drivers/usb/core/hcd.c > +++ b/drivers/usb/core/hcd.c > @@ -3017,6 +3017,9 @@ usb_hcd_platform_shutdown(struct platform_device *dev) > { > struct usb_hcd *hcd = platform_get_drvdata(dev); > > + /* No need for pm_runtime_put(), we're shutting down */ > + pm_runtime_get_sync(&dev->dev); > + > if (hcd->driver->shutdown) > hcd->driver->shutdown(hcd); > }
Acked-by: Alan Stern <[email protected]>
