[PATCH 17/23] tty: add kernel-doc for more tty_driver functions

[Jiri Slaby <jslaby@suse.cz>]

The only documented function for tty_driver structure
allocation/registration was __tty_alloc_driver(). Fix highlighting in
that comment.

And add kernel-doc headers to all tty_driver_kref_put(),
tty_register_driver(), and tty_unregister_driver() -- i.e. the main
ones. More to follow later.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/tty/tty_io.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index b23269eb0cba..26b325e44c53 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3394,13 +3394,22 @@ static void destruct_tty_driver(struct kref *kref)
 	kfree(driver);
 }
 
+/**
+ * tty_driver_kref_put -- drop a reference to a tty driver
+ * @driver: driver of which to drop the reference
+ *
+ * The final put will destroy and free up the driver.
+ */
 void tty_driver_kref_put(struct tty_driver *driver)
 {
 	kref_put(&driver->kref, destruct_tty_driver);
 }
 EXPORT_SYMBOL(tty_driver_kref_put);
 
-/*
+/**
+ * tty_register_driver -- register a tty driver
+ * @driver: driver to register
+ *
  * Called by a tty driver to register itself.
  */
 int tty_register_driver(struct tty_driver *driver)
@@ -3462,7 +3471,10 @@ int tty_register_driver(struct tty_driver *driver)
 }
 EXPORT_SYMBOL(tty_register_driver);
 
-/*
+/**
+ * tty_unregister_driver -- unregister a tty driver
+ * @driver: driver to unregister
+ *
  * Called by a tty driver to unregister itself.
  */
 void tty_unregister_driver(struct tty_driver *driver)
-- 
2.34.0