[PATCH 02/14] qla2xxx: Fix unbound sleep in fcport delete path.

[Himanshu Madhani]

From: Quinn Tran <qut...@marvell.com>

There are instances, though rare, where a LOGO request
cannot be sent out and the thread in free session done
can wait indefinitely. Fix this by putting an upper
bound to sleep.

Signed-off-by: Quinn Tran <qut...@marvell.com>
Signed-off-by: Himanshu Madhani <hmadh...@marvell.com>
---
 drivers/scsi/qla2xxx/qla_target.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/qla2xxx/qla_target.c 
b/drivers/scsi/qla2xxx/qla_target.c
index d0061ae1488e..135c39a3cb66 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1021,6 +1021,7 @@ void qlt_free_session_done(struct work_struct *work)
 
        if (logout_started) {
                bool traced = false;
+               u16 cnt = 0;
 
                while (!READ_ONCE(sess->logout_completed)) {
                        if (!traced) {
@@ -1030,6 +1031,9 @@ void qlt_free_session_done(struct work_struct *work)
                                traced = true;
                        }
                        msleep(100);
+                       cnt++;
+                       if (cnt > 200)
+                               break;
                }
 
                ql_dbg(ql_dbg_disc, vha, 0xf087,
-- 
2.12.0