diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 5094ef15afd9..dd8c4810a6dd 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1083,8 +1083,6 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	mapping = file->f_mapping;
 	inode = mapping->host;
 
-	size = get_loop_size(lo, file);
-
 	if ((config->info.lo_flags & ~LOOP_CONFIGURE_SETTABLE_FLAGS) != 0) {
 		error = -EINVAL;
 		goto out_unlock;
@@ -1135,6 +1133,8 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
+
+	size = get_loop_size(lo, file);
 	loop_set_size(lo, size);
 
 	set_blocksize(bdev, S_ISBLK(inode->i_mode) ?