scsi: target: iscsi: calling iscsit_stop_session() inside iscsit_close_session()...

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@redhat.com
Tested-by: Rahul Kundu <rahul.kundu@chelsio.com>
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 8ef5cf6eb5b4b0d549f591df02edc9ef49cfeee0..3704073258b184b37cbf884be2b90b661b58f6a6 100644 (file)
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4381,8 +4381,7 @@ 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);