PR fixes

src/blkdev.c

@@ -152,21 +152,16 @@ struct super_block *dattobd_get_super(struct block_device * bd)
  */
 void dattobd_drop_super(struct super_block *sb) 
 {
-#if defined HAVE_BD_SUPER
-        return;
-
-#elif defined HAVE_GET_SUPER
+#if defined HAVE_GET_SUPER
         return drop_super(sb);
-
-#else
-        return;
 #endif
+        return;
 }
 
 /**
  * dattobd_blkdev_put() - Releases a reference to a block device.
  * This function performs the appropriate action based on the available
- * kernel functions to release or drop the superblock.
+ * kernel functions to release block device.
  *
  * @bd: block device structure pointer to be released.
  *