Re: USB: change interface to usb_lock_device_for_reset()

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On Thu, 8 Jan 2009, Mike Isely wrote:
> > Yes... Anyway, this is the real patch. I've added a small comment about this
> > change... I'll commit this tomorrow, if you don't have a better suggestion.
>
> Looks good.

Or maybe like this?

diff -r f01b3897d141 linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c
--- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c	Fri Jan 09 00:27:32 2009 -0200
+++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c	Fri Jan 09 02:45:48 2009 -0200
@@ -3747,7 +3747,12 @@
 	int ret;
 	pvr2_trace(PVR2_TRACE_INIT,"Performing a device reset...");
 	ret = usb_lock_device_for_reset(hdw->usb_dev,NULL);
- 	if (ret == 1) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+	/* Due to the API changes, the ret value for success changed */
+	ret = ret != 1;
+#endif
+	if (ret == 0) {
 		ret = usb_reset_device(hdw->usb_dev);
 		usb_unlock_device(hdw->usb_dev);
 	} else {

> > diff -r f01b3897d141 linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c
> > --- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c	Fri Jan 09 00:27:32 2009 -0200
> > +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c	Fri Jan 09 02:45:48 2009 -0200
> > @@ -3747,7 +3747,12 @@
> >  	int ret;
> >  	pvr2_trace(PVR2_TRACE_INIT,"Performing a device reset...");
> >  	ret = usb_lock_device_for_reset(hdw->usb_dev,NULL);
> > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
> > +	if (ret == 0) {
> > +#else
> > +	/* Due to the API changes, the ret value for success changed */
> >  	if (ret == 1) {
> > +#endif
> >  		ret = usb_reset_device(hdw->usb_dev);
> >  		usb_unlock_device(hdw->usb_dev);
> >  	} else {
--
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