[PATCH 5.6 71/71] scsi: target: iscsi: calling iscsit_stop_session() inside iscsit_close_session() has no effect
From: Greg Kroah-Hartman
Date: Mon Apr 20 2020 - 08:45:23 EST
From: Maurizio Lombardi <mlombard@xxxxxxxxxx>
[ Upstream commit 626bac73371eed79e2afa2966de393da96cf925e ]
iscsit_close_session() can only be called when nconn is zero (otherwise a
kernel panic is triggered). If nconn is zero then iscsit_stop_session()
does nothing and exits, so calling it makes no sense.
We still need to call iscsit_check_session_usage_count() because this
function will sleep if the session's refcount is not zero and we don't want
to destroy the session structure if it's still being referenced.
Link: https://lore.kernel.org/r/20200313170656.9716-4-mlombard@xxxxxxxxxx
Tested-by: Rahul Kundu <rahul.kundu@xxxxxxxxxxx>
Signed-off-by: Maurizio Lombardi <mlombard@xxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/target/iscsi/iscsi_target.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 09e55ea0bf5d5..9fc7e374a29b4 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4368,8 +4368,7 @@ int iscsit_close_session(struct iscsi_session *sess)
* restart the timer and exit.
*/
if (!in_interrupt()) {
- if (iscsit_check_session_usage_count(sess) == 1)
- iscsit_stop_session(sess, 1, 1);
+ iscsit_check_session_usage_count(sess);
} else {
if (iscsit_check_session_usage_count(sess) == 2) {
atomic_set(&sess->session_logout, 0);
--
2.20.1