[PATCH] btrfs: remove BUG_ON in btrfs_rm_dev_replace_free_srcdev()

[Anand Jain <anand.jain@oracle.com>]

That was only an extra check to tackle few bugs around this
area, now its save to remove it.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 fs/btrfs/volumes.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 332e00e72b86..0a5251a34d58 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2015,16 +2015,12 @@ void btrfs_rm_dev_replace_free_srcdev(struct btrfs_fs_info *fs_info,
 	}
 
 	btrfs_close_bdev(srcdev);
-
 	call_rcu(&srcdev->rcu, free_device);
 
 	/*
-	 * unless fs_devices is seed fs, num_devices shouldn't go
-	 * zero
+	 * If this is no devs we rather delete the fs_devices
+	 * which is true in case of single device seeding fs.
 	 */
-	BUG_ON(!fs_devices->num_devices && !fs_devices->seeding);
-
-	/* if this is no devs we rather delete the fs_devices */
 	if (!fs_devices->num_devices) {
 		struct btrfs_fs_devices *tmp_fs_devices;
 
-- 
2.13.1