[PATCH -next v4] block: remove WARN_ON() from bd_link_disk_holder

[Li Nan]

Since commit 83cbce957446("block: add error handling for device_add_disk /
add_disk"), bdev->bd_holder_dir can not be empty now, so remove WARN_ON()
from bd_link_disk_holder.

Signed-off-by: Li Nan <linan122@xxxxxxxxxx>
---
 block/holder.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/block/holder.c b/block/holder.c
index 8d750281a1cd..5283bc804cc1 100644
--- a/block/holder.c
+++ b/block/holder.c
@@ -79,10 +79,6 @@ int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk)
 
 	WARN_ON_ONCE(!bdev->bd_holder);
 
-	/* FIXME: remove the following once add_disk() handles errors */
-	if (WARN_ON(!bdev->bd_holder_dir))
-		goto out_unlock;
-
 	holder = bd_find_holder_disk(bdev, disk);
 	if (holder) {
 		holder->refcnt++;
-- 
2.31.1