TTY: move cdev_add to tty_register_device
We need the /dev/ node not to be available before we call
tty_register_device. Otherwise we might race with open and
tty_struct->port might not be available at that time.
This is not an issue now, but would be a problem after "TTY: use
tty_port_register_device" is applied.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 44e05b7..dd976cf 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -289,7 +289,7 @@
struct tty_driver {
int magic; /* magic number for this structure */
struct kref kref; /* Reference management */
- struct cdev cdev;
+ struct cdev *cdevs;
struct module *owner;
const char *driver_name;
const char *name;