ipack: add ipack_get_device() ipack_put_device()

Prepare everything for later use.

Signed-off-by: Samuel Iglesias Gonsalvez <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/ipack/ipack.c

···
 }
 EXPORT_SYMBOL_GPL(ipack_device_unregister);
 
+void ipack_get_device(struct ipack_device *dev)
+{
+	get_device(&dev->dev);
+}
+EXPORT_SYMBOL_GPL(ipack_get_device);
+
+void ipack_put_device(struct ipack_device *dev)
+{
+	put_device(&dev->dev);
+}
+EXPORT_SYMBOL_GPL(ipack_put_device);
+
 static int __init ipack_init(void)
 {
 	ida_init(&ipack_ida);

include/linux/ipack.h

···
 int ipack_device_register(struct ipack_device *dev);
 void ipack_device_unregister(struct ipack_device *dev);
 
+void ipack_get_device(struct ipack_device *dev);
+void ipack_put_device(struct ipack_device *dev);
+
 /**
  * DEFINE_IPACK_DEVICE_TABLE - macro used to describe a IndustryPack table
  * @_table: device table name