On Wed, May 03, 2017 at 02:56:34PM +0000, Grant Edwards wrote: > I've recently received a bug report on a tty driver that I maintain: Which one? > the problem is that when the driver is unloaded, the /dev/tty__ files > remain. [I thought that the /dev/tty__ files used to go away when the > module was unloaded.] > > In my module_cleanup function I do this: > > for each port: > tty_unregister_device(driver, portnum); > tty_port_destroy(&info->port) > > tty_unregister_driver(driver); > put_tty_driver(driver); > > What is that that is supposed to trigger removal of the char device > files? [When my uart drivers are unloaded, the /dev/tty__ files go > away, so there's something that serial_core is doing that my tty > driver needs to do...] Which driver is this? Are you sure you aren't leaking a reference somewhere? That will cause the sysfs files/directory from being removed properly. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
