1 files changed, 11 insertions, 2 deletions

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 2b6e53af47da..b6af41b04622 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -61,6 +61,15 @@ static inline struct mtd_part *mtd_to_part(const struct mtd_info *mtd)
         return container_of(mtd, struct mtd_part, mtd);
 }
 
+static u64 part_absolute_offset(struct mtd_info *mtd)
+{
+        struct mtd_part *part = mtd_to_part(mtd);
+
+        if (!mtd_is_partition(mtd))
+                return 0;
+
+        return part_absolute_offset(part->parent) + part->offset;
+}
 
 /*
  * MTD methods which simply translate the effective address and pass through
@@ -514,7 +523,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent,
         if (!(slave->mtd.flags & MTD_NO_ERASE))
                 wr_alignment = slave->mtd.erasesize;
 
-        tmp = slave->offset;
+        tmp = part_absolute_offset(parent) + slave->offset;
         remainder = do_div(tmp, wr_alignment);
         if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
                 /* Doesn't start on a boundary of major erase size */
@@ -525,7 +534,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent,
                         part->name);
         }
 
-        tmp = slave->mtd.size;
+        tmp = part_absolute_offset(parent) + slave->mtd.size;
         remainder = do_div(tmp, wr_alignment);
         if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
                 slave->mtd.flags &= ~MTD_WRITEABLE;