1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index 0d98c223c5fc..be3f1c136d02 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -324,6 +324,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
 
         dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK;
         dev->mtd.erasesize = erase_size;
+        dev->mtd.writesize = 1;
         dev->mtd.type = MTD_RAM;
         dev->mtd.flags = MTD_CAP_RAM;
         dev->mtd.erase = block2mtd_erase;