Am Mittwoch, 3. Juni 2009 18:37:38 schrieb Alan Stern: > On Wed, 3 Jun 2009, Oliver Neukum wrote: > > Hi Alan, > > > > I am looking at using the interface in practice. It seems to me that > > pm_usage_cnt can become corrupted if usb_autopm_get_interface_async() > > and usb_autopm_put_interface_async() race. Convert it to atomic_t? > > Or else have the driver do some sort of locking. You'd probably want > locking anyway. The problem with that is that it is a difference in behavior to the sync versions. It violates the principle of least surprise. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
