[MTD] Allow variable block sizes in mtd_blkdevs

Currently, mtd_blkdevs enforces a block size of 512, even if the drivers
can seemingly request a different size. This patch fixes mtd_blkdevs so
block sizes other than 512 work correctly.

Signed-off-by: Richard Purdie <rpurdie@openedhand.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c
index 8a878b3..da39355 100644
--- a/drivers/mtd/ftl.c
+++ b/drivers/mtd/ftl.c
@@ -1054,7 +1054,7 @@
 		       le32_to_cpu(partition->header.FormattedSize) >> 10);
 #endif
 		partition->mbd.size = le32_to_cpu(partition->header.FormattedSize) >> 9;
-		partition->mbd.blksize = SECTOR_SIZE;
+
 		partition->mbd.tr = tr;
 		partition->mbd.devnum = -1;
 		if (!add_mtd_blktrans_dev((void *)partition))
@@ -1076,6 +1076,7 @@
 	.name		= "ftl",
 	.major		= FTL_MAJOR,
 	.part_bits	= PART_BITS,
+	.blksize 	= SECTOR_SIZE,
 	.readsect	= ftl_readsect,
 	.writesect	= ftl_writesect,
 	.getgeo		= ftl_getgeo,