Since we are emulating a block device, its size should be multiple of the configured block size.
Signed-off-by: Bin Meng bmeng@tinylab.org ---
drivers/block/host_dev.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/block/host_dev.c b/drivers/block/host_dev.c index 0b43f80a86..30c7415793 100644 --- a/drivers/block/host_dev.c +++ b/drivers/block/host_dev.c @@ -58,6 +58,11 @@ static int host_sb_attach_file(struct udevice *dev, const char *filename)
size = os_filesize(fd); desc = dev_get_uclass_plat(blk); + if (size % desc->blksz) { + printf("The size of host backing file '%s' is not multiple of " + "the device block size\n", filename); + goto err_fname; + } desc->lba = size / desc->blksz;
/* write this in last, when nothing can go wrong */