diff --git a/fs/block_dev.c b/fs/block_dev.c
index 7346c96..204a763 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -734,6 +734,7 @@
 		return ERR_PTR(-ENXIO);
 
 	whole = bdget_disk(disk, 0);
+	module_put(disk->fops->owner);
 	put_disk(disk);
 	if (!whole)
 		return ERR_PTR(-ENOMEM);