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authorQuinn Tran <qutran@marvell.com>2019-09-12 11:09:06 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2019-09-23 23:09:42 -0400
commitc3b6a1d397420a0fdd97af2f06abfb78adc370df (patch)
treec04565b5d2d375d7b0d0f1bc0a0c4103d4472aa2 /drivers/scsi
parent248a445adfc8c33ffd67cf1f2e336578e34f9e21 (diff)
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scsi: qla2xxx: Fix unbound sleep in fcport delete path.
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. Link: https://lore.kernel.org/r/20190912180918.6436-3-hmadhani@marvell.com Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/qla2xxx/qla_target.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 0ffda6171614..b58ecd2d7fb6 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1020,6 +1020,7 @@ 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) {
@@ -1029,6 +1030,9 @@ 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,