1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 89e937dfef55..d644e57703ad 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -207,6 +207,13 @@ struct mtd_info {
 
         struct module *owner;
         int usecount;
+
+        /* If the driver is something smart, like UBI, it may need to maintain
+         * its own reference counting. The below functions are only for driver.
+         * The driver may register its callbacks. These callbacks are not
+         * supposed to be called by MTD users */
+        int (*get_device) (struct mtd_info *mtd);
+        void (*put_device) (struct mtd_info *mtd);
 };