Re: [PATCH] usb: ulpi: don't register drivers if bus doesn't exist

[Heikki Krogerus]

> > >>diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
> > >>index 0e6f968..0b0a5e7 100644
> > >>--- a/drivers/usb/common/ulpi.c
> > >>+++ b/drivers/usb/common/ulpi.c
> > >>@@ -132,6 +132,10 @@ int ulpi_register_driver(struct ulpi_driver *drv)
> > >>  	if (!drv->probe)
> > >>  		return -EINVAL;
> > >>+	/* Was the bus registered successfully? */
> > >>+	if (!ulpi_bus.p)
> > >>+		return -ENODEV;
> 
> I think we need to warn in this case. How about:
> 
>         if (unlikely(WARN_ON(!ulpi_bus.p)))
>                 return -ENODEV;

I think we should also return -EAGAIN here.


Thanks,

-- 
heikki
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/