diff --git a/drivers/dio/dio-driver.c b/drivers/dio/dio-driver.c
index e4c48e3..8cd8507 100644
--- a/drivers/dio/dio-driver.c
+++ b/drivers/dio/dio-driver.c
@@ -15,16 +15,15 @@
 #include <linux/dio.h>
 
 
-	/**
-	 *  dio_match_device - Tell if a DIO device structure has a matching
-	 *                     DIO device id structure
-	 *  @ids: array of DIO device id structures to search in
-	 *  @dev: the DIO device structure to match against
-	 *
-	 *  Used by a driver to check whether a DIO device present in the
-	 *  system is in its list of supported devices. Returns the matching
-	 *  dio_device_id structure or %NULL if there is no match.
-	 */
+/**
+ *  dio_match_device - Tell if a DIO device structure has a matching DIO device id structure
+ *  @ids: array of DIO device id structures to search in
+ *  @d: the DIO device structure to match against
+ *
+ *  Used by a driver to check whether a DIO device present in the
+ *  system is in its list of supported devices. Returns the matching
+ *  dio_device_id structure or %NULL if there is no match.
+ */
 
 const struct dio_device_id *
 dio_match_device(const struct dio_device_id *ids,
@@ -66,13 +65,13 @@
 }
 
 
-	/**
-	 *  dio_register_driver - register a new DIO driver
-	 *  @drv: the driver structure to register
-	 *
-	 *  Adds the driver structure to the list of registered drivers
-	 *  Returns zero or a negative error value.
-	 */
+/**
+ *  dio_register_driver - register a new DIO driver
+ *  @drv: the driver structure to register
+ *
+ *  Adds the driver structure to the list of registered drivers
+ *  Returns zero or a negative error value.
+ */
 
 int dio_register_driver(struct dio_driver *drv)
 {
@@ -85,15 +84,15 @@
 }
 
 
-	/**
-	 *  dio_unregister_driver - unregister a DIO driver
-	 *  @drv: the driver structure to unregister
-	 *
-	 *  Deletes the driver structure from the list of registered DIO drivers,
-	 *  gives it a chance to clean up by calling its remove() function for
-	 *  each device it was responsible for, and marks those devices as
-	 *  driverless.
-	 */
+/**
+ *  dio_unregister_driver - unregister a DIO driver
+ *  @drv: the driver structure to unregister
+ *
+ *  Deletes the driver structure from the list of registered DIO drivers,
+ *  gives it a chance to clean up by calling its remove() function for
+ *  each device it was responsible for, and marks those devices as
+ *  driverless.
+ */
 
 void dio_unregister_driver(struct dio_driver *drv)
 {
@@ -101,16 +100,15 @@
 }
 
 
-	/**
-	 *  dio_bus_match - Tell if a DIO device structure has a matching DIO
-	 *                  device id structure
-	 *  @ids: array of DIO device id structures to search in
-	 *  @dev: the DIO device structure to match against
-	 *
-	 *  Used by a driver to check whether a DIO device present in the
-	 *  system is in its list of supported devices. Returns the matching
-	 *  dio_device_id structure or %NULL if there is no match.
-	 */
+/**
+ *  dio_bus_match - Tell if a DIO device structure has a matching DIO device id structure
+ *  @dev: the DIO device structure to match against
+ *  @drv: the &device_driver that points to the array of DIO device id structures to search
+ *
+ *  Used by a driver to check whether a DIO device present in the
+ *  system is in its list of supported devices. Returns the matching
+ *  dio_device_id structure or %NULL if there is no match.
+ */
 
 static int dio_bus_match(struct device *dev, struct device_driver *drv)
 {