On Mon, 19 Nov 2012, harvey yang wrote: > Hi, all > I checked many usb drivers in the mainline kernel which do not record > this reference in their probe methods. But according to the documents > about this function, we shoud record this reference in our probe > methods, just as the call to 'usb_get_dev()' to reference a usb > device. Are these usb drivers right or we need to fix them?
The drivers are right; they do not need to be fixed. The reason is because the drivers will be unbound automatically when the device or interface is unregistered. The only reason for a driver to take a reference would be if it wanted to continue using the device after it was unbound. But drivers aren't supposed to do that. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
