linux-kernel - [PATCH] null_blk: add lightnvm null_blk device to the nullb

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Date:	Sat,  5 Mar 2016 00:27:04 +0800
From:	Wenwei Tao <ww.tao0320@...il.com>
To:	axboe@...com
Cc:	linux-kernel@...r.kernel.org, linux-block@...r.kernel.org
Subject: [PATCH] null_blk: add lightnvm null_blk device to the nullb_list

After register null_blk devices into lightnvm, we forget
to add these devices to the the nullb_list, makes them
invisible to the null_blk driver.

Signed-off-by: Wenwei Tao <ww.tao0320@...il.com>
---
 drivers/block/null_blk.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index 64a7b59..cab9759 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -742,10 +742,11 @@ static int null_add_dev(void)
 
 	add_disk(disk);
 
+done:
 	mutex_lock(&lock);
 	list_add_tail(&nullb->list, &nullb_list);
 	mutex_unlock(&lock);
-done:
+
 	return 0;
 
 out_cleanup_lightnvm:
-- 
1.8.3.1