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Commit ea6d833a authored by Fabian Frederick's avatar Fabian Frederick Committed by Brian Norris
Browse files

mtd: block2mtd: check device size 



fixme applied : check device size is a multiple of erasesize.

Signed-off-by: default avatarFabian Frederick <fabf@skynet.be>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent 90445ff6

drivers/mtd/devices/block2mtd.c

+5 −1
Original line number Original line Diff line number Diff line
@@ -209,7 +209,6 @@ static void block2mtd_free_device(struct block2mtd_dev *dev) 
}

}









/* FIXME: ensure that mtd->size % erase_size == 0 */

static struct block2mtd_dev *add_device(char *devname, int erase_size)

static struct block2mtd_dev *add_device(char *devname, int erase_size)

{

{

	const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;

	const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
@@ -249,6 +248,11 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) 
		goto err_free_block2mtd;

		goto err_free_block2mtd;

	}

	}





	if ((long)dev->blkdev->bd_inode->i_size % erase_size) {

		pr_err("erasesize must be a divisor of device size\n");

		goto err_free_block2mtd;

	}



	mutex_init(&dev->write_mutex);

	mutex_init(&dev->write_mutex);





	/* Setup the MTD structure */

	/* Setup the MTD structure */