5 files changed, 5 insertions, 0 deletions

diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index 880580c44e01..41844ea02462 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -727,6 +727,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],	/* subdevices to c
         concat->mtd.erasesize = subdev[0]->erasesize;
         concat->mtd.writesize = subdev[0]->writesize;
         concat->mtd.oobsize = subdev[0]->oobsize;
+        concat->mtd.oobavail = subdev[0]->oobavail;
         if (subdev[0]->writev)
                 concat->mtd.writev = concat_writev;
         if (subdev[0]->read_oob)
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 633def3fb087..01e4afff42b0 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -338,6 +338,7 @@ int add_mtd_partitions(struct mtd_info *master,
                 slave->mtd.size = parts[i].size;
                 slave->mtd.writesize = master->writesize;
                 slave->mtd.oobsize = master->oobsize;
+                slave->mtd.oobavail = master->oobavail;
                 slave->mtd.subpage_sft = master->subpage_sft;
 
                 slave->mtd.name = parts[i].name;
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index acaf97bc80d1..6af37b8cff65 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2524,6 +2524,7 @@ int nand_scan_tail(struct mtd_info *mtd)
         for (i = 0; chip->ecc.layout->oobfree[i].length; i++)
                 chip->ecc.layout->oobavail +=
                         chip->ecc.layout->oobfree[i].length;
+        mtd->oobavail = chip->ecc.layout->oobavail;
 
         /*
          * Set the number of read / write steps for one page depending on ECC
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 7f1cb6e5dccb..621c3f8ec27b 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -2367,6 +2367,7 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
         for (i = 0; this->ecclayout->oobfree[i].length; i++)
                 this->ecclayout->oobavail +=
                         this->ecclayout->oobfree[i].length;
+        mtd->oobavail = this->ecclayout->oobavail;
 
         mtd->ecclayout = this->ecclayout;
 
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 6a8570be331b..3d956c3abb31 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -121,6 +121,7 @@ struct mtd_info {
         u_int32_t writesize;
 
         u_int32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+        u_int32_t oobavail;  // Available OOB bytes per block
 
         // Kernel-only stuff starts here.
         char *name;