6 files changed, 7 insertions, 1 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;
diff --git a/drivers/mtd/devices/ms02-nv.c b/drivers/mtd/devices/ms02-nv.c
index 4ab7670770e4..08dfb899b272 100644
--- a/drivers/mtd/devices/ms02-nv.c
+++ b/drivers/mtd/devices/ms02-nv.c
@@ -225,6 +225,7 @@ static int __init ms02nv_init_one(ulong addr)
         mtd->owner = THIS_MODULE;
         mtd->read = ms02nv_read;
         mtd->write = ms02nv_write;
+        mtd->writesize = 1;
 
         ret = -EIO;
         if (add_mtd_device(mtd)) {
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index a19480d07888..04271d02b6b6 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -478,6 +478,7 @@ add_dataflash(struct spi_device *spi, char *name,
         device->name = (pdata && pdata->name) ? pdata->name : priv->name;
         device->size = nr_pages * pagesize;
         device->erasesize = pagesize;
+        device->writesize = pagesize;
         device->owner = THIS_MODULE;
         device->type = MTD_DATAFLASH;
         device->flags = MTD_CAP_NORFLASH;
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
index e09e416667d3..6c7337f9ebbb 100644
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@@ -151,6 +151,7 @@ static int register_device(char *name, unsigned long start, unsigned long len)
         new->mtd.owner = THIS_MODULE;
         new->mtd.type = MTD_RAM;
         new->mtd.erasesize = PAGE_SIZE;
+        new->mtd.writesize = 1;
 
         ret = -EAGAIN;
         if (add_mtd_device(&new->mtd)) {
diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index 666cce1bf60c..f620d74f1004 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -778,7 +778,8 @@ static int __init init_pmc551(void)
                 mtd->type       = MTD_RAM;
                 mtd->name       = "PMC551 RAM board";
                 mtd->erasesize  = 0x10000;
-                mtd->owner = THIS_MODULE;
+                mtd->writesize  = 1;
+                mtd->owner = THIS_MODULE;
 
                 if (add_mtd_device(mtd)) {
                         printk(KERN_NOTICE "pmc551: Failed to register new device\n");
diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c
index b3f665e3c38b..542a0c009006 100644
--- a/drivers/mtd/devices/slram.c
+++ b/drivers/mtd/devices/slram.c
@@ -209,6 +209,7 @@ static int register_device(char *name, unsigned long start, unsigned long length
         (*curmtd)->mtdinfo->owner = THIS_MODULE;
         (*curmtd)->mtdinfo->type = MTD_RAM;
         (*curmtd)->mtdinfo->erasesize = SLRAM_BLK_SZ;
+        (*curmtd)->mtdinfo->writesize = 1;
 
         if (add_mtd_device((*curmtd)->mtdinfo)) {
                 E("slram: Failed to register new device\n");