Messages in this thread Patch in this message | | | Date | Thu, 23 Jan 2014 20:53:31 +0100 | From | Fabian Frederick <> | Subject | [PATCH 3/4] mtd: block2mtd: check device size |
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fixme applied : check device size is a multiple of erasesize.
Signed-off-by: Fabian Frederick <fabf@skynet.be> --- drivers/mtd/devices/block2mtd.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 8071596..f0fd4fc 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -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) { const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL; @@ -250,6 +249,11 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) goto devinit_err1; } + if ((long)dev->blkdev->bd_inode->i_size % erase_size) { + pr_err("erasesize muse be a divisor of device size\n"); + goto devinit_err1; + } + mutex_init(&dev->write_mutex); /* Setup the MTD structure */ -- 1.8.1.4
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