linux-kernel - [PATCH 02/17] drbd: must not use connection after kref

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Date:   Thu, 20 Dec 2018 17:23:29 +0100
From:   Lars Ellenberg <lars.ellenberg@...bit.com>
To:     Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
        linux-block@...r.kernel.org
Cc:     drbd-dev@...ts.linbit.com
Subject: [PATCH 02/17] drbd: must not use connection after kref_put(&connection->kref)

Signed-off-by: Lars Ellenberg <lars.ellenberg@...bit.com>
---
 drivers/block/drbd/drbd_state.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index 0813c654c893..18d53fe60d1d 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -2109,9 +2109,8 @@ static int w_after_conn_state_ch(struct drbd_work *w, int unused)
 			spin_unlock_irq(&connection->resource->req_lock);
 		}
 	}
-	kref_put(&connection->kref, drbd_destroy_connection);
-
 	conn_md_sync(connection);
+	kref_put(&connection->kref, drbd_destroy_connection);
 
 	return 0;
 }
-- 
2.17.1