[SCSI] libiscsi: flush work before freeing connection

It's possible that we call iscsi_xmitworker after iscsi_conn_release
which causes a oops. This patch flushes the workqueue.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 7c75771c77ff..6346a913c36e 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1597,6 +1597,9 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
                 wake_up(&conn->ehwait);
         }
 
+        /* flush queued up work because we free the connection below */
+        scsi_flush_work(session->host);
+
         spin_lock_bh(&session->lock);
         kfree(conn->data);
         kfree(conn->persistent_address);