diff --git a/[refs] b/[refs]
index a28458869c8c..a9c7edd59fe5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bac9caf016bf147af7d3afbe7580a7f773cb1566
+refs/heads/master: dbf8c11f821b6ff83302c34f2403b4f7231f50ae
diff --git a/trunk/drivers/mtd/devices/mtd_dataflash.c b/trunk/drivers/mtd/devices/mtd_dataflash.c
index 62dee54af0a5..43976aa4dbb1 100644
--- a/trunk/drivers/mtd/devices/mtd_dataflash.c
+++ b/trunk/drivers/mtd/devices/mtd_dataflash.c
@@ -178,7 +178,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
 		/* Calculate flash page address; use block erase (for speed) if
 		 * we're at a block boundary and need to erase the whole block.
 		 */
-		pageaddr = div_u64(instr->len, priv->page_size);
+		pageaddr = div_u64(instr->addr, priv->page_size);
 		do_block = (pageaddr & 0x7) == 0 && instr->len >= blocksize;
 		pageaddr = pageaddr << priv->page_offset;