Am Donnerstag, 12. Januar 2012, 10:42:22 schrieb Ming Lei: > There is no reason to hold hiddev->existancelock before > calling usb_deregister_dev, so move it out of the lock. > > The patch fixes the lockdep warning below [1]. > > [1], lockdep warning Hi, you should however hold the lock while you unset hiddev->exist and you should unset hiddev->exist before you call usb_deregister_dev(). So the diagnosis is very good, but the patch needs a bit elaboration. 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
