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[3.13,096/163] Target/iser: Don't put isert_conn inside disconnected handler

Message ID 1412888588-26755-97-git-send-email-kamal@canonical.com
State New
Headers show

Commit Message

Kamal Mostafa Oct. 9, 2014, 9:02 p.m. UTC 
3.13.11.9 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sagi Grimberg <sagig@mellanox.com>

commit 0fc4ea701fcf5bc51ace4e288af5be741465f776 upstream.

disconnected_handler is invoked on several CM events (such
as DISCONNECTED, DEVICE_REMOVAL, TIMEWAIT_EXIT...). Since
multiple  events can occur while before isert_free_conn is
invoked, we might put all isert_conn references and free
the connection too early.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/infiniband/ulp/isert/ib_isert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index a4210f9..44b883f 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -695,7 +695,6 @@  isert_disconnect_work(struct work_struct *work)
 
 wake_up:
 	complete(&isert_conn->conn_wait);
-	isert_put_conn(isert_conn);
 }
 
 static void
@@ -2777,6 +2776,7 @@  static void isert_wait_conn(struct iscsi_conn *conn)
 	wait_for_completion(&isert_conn->conn_wait_comp_err);
 
 	wait_for_completion(&isert_conn->conn_wait);
+	isert_put_conn(isert_conn);
 }
 
 static void isert_free_conn(struct iscsi_conn *conn)