staging: unisys: Convert device creation to use visor_device

This patch removes the legacy dev_info struct and instead creates
and passes around a traditional struct device.

This allows us to remove a lot of the various look up code and
removes the doubt if the struct exists or not.

Half of the churn is just the conversion of visorchipset_device_info
to visor_device.  Various cleanups include re-arranging the failure
paths to make more sense.

Pay attention to the create_visor_device function.  This had a lot of
churn to simplify everything.

Lots of functions disappeared because they are not needed any more.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h
index e7f9984..581d962 100644
--- a/drivers/staging/unisys/include/visorbus.h
+++ b/drivers/staging/unisys/include/visorbus.h
@@ -43,7 +43,7 @@ struct visor_device;
 extern struct bus_type visorbus_type;
 
 typedef void (*visorbus_state_complete_func) (struct visor_device *dev,
-					      int status, void *dev_info);
+					      int status);
 struct visorchipset_state {
 	u32 created:1;
 	u32 attached:1;
@@ -106,11 +106,9 @@ struct visor_driver {
 	 *  fails or completes successfully.
 	 */
 	int (*pause)(struct visor_device *dev,
-		     visorbus_state_complete_func complete_func,
-		     void *dev_info);
+		     visorbus_state_complete_func complete_func);
 	int (*resume)(struct visor_device *dev,
-		      visorbus_state_complete_func complete_func,
-		      void *dev_info);
+		      visorbus_state_complete_func complete_func);
 
 	/** These fields are for private use by the bus driver only. */
 	struct device_driver driver;