Correct kernel-doc comment format and add a missing to avoid
kernel-doc warnings:

Warning: include/linux/serdev.h:49 struct member 'write_comp' not
 described in 'serdev_device'
Warning: include/linux/serdev.h:49 struct member 'write_lock' not
 described in 'serdev_device'
Warning: include/linux/serdev.h:68 struct member 'shutdown' not described
 in 'serdev_device_driver'
Warning: include/linux/serdev.h:134 function parameter 'serdev' not
 described in 'serdev_device_put'
Warning: include/linux/serdev.h:162 function parameter 'ctrl' not
 described in 'serdev_controller_put'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
---
Cc: Rob Herring <robh@kernel.org>
Cc: linux-serial@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

 include/linux/serdev.h |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- linux-next-20260309.orig/include/linux/serdev.h
+++ linux-next-20260309/include/linux/serdev.h
@@ -37,8 +37,8 @@ struct serdev_device_ops {
  * @nr:		Device number on serdev bus.
  * @ctrl:	serdev controller managing this device.
  * @ops:	Device operations.
- * @write_comp	Completion used by serdev_device_write() internally
- * @write_lock	Lock to serialize access when writing data
+ * @write_comp:	Completion used by serdev_device_write() internally
+ * @write_lock:	Lock to serialize access when writing data
  */
 struct serdev_device {
 	struct device dev;
@@ -60,6 +60,7 @@ static inline struct serdev_device *to_s
  *		structure.
  * @probe:	binds this driver to a serdev device.
  * @remove:	unbinds this driver from the serdev device.
+ * @shutdown:	shut down this serdev device.
  */
 struct serdev_device_driver {
 	struct device_driver driver;
@@ -129,7 +130,7 @@ static inline void serdev_device_set_drv
 
 /**
  * serdev_device_put() - decrement serdev device refcount
- * @serdev	serdev device.
+ * @serdev:	serdev device.
  */
 static inline void serdev_device_put(struct serdev_device *serdev)
 {
@@ -157,7 +158,7 @@ static inline void serdev_controller_set
 
 /**
  * serdev_controller_put() - decrement controller refcount
- * @ctrl	serdev controller.
+ * @ctrl:	serdev controller.
  */
 static inline void serdev_controller_put(struct serdev_controller *ctrl)
 {