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-rw-r--r--drivers/block/host_dev.c5
1 files changed, 5 insertions, 0 deletions
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 */