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authorQuinn Tran <qutran@marvell.com>2019-09-12 11:09:06 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-29 09:14:58 +0100
commit0229c97ff6d59dcd42ce2deb54e801db5260875e (patch)
treeb1a3d623e3e6fdee6ca37425fa48298694c4642b /drivers/scsi/qla2xxx
parent80efde4ba80d968ff94caee94fad69dc15ba6f26 (diff)
scsi: qla2xxx: Fix unbound sleep in fcport delete path.
[ Upstream commit c3b6a1d397420a0fdd97af2f06abfb78adc370df ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi/qla2xxx')
-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 11f45cb99892..d13e91e16425 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -572,6 +572,7 @@ static void qlt_free_session_done(struct work_struct *work)
if (logout_started) {
bool traced = false;
+ u16 cnt = 0;
while (!ACCESS_ONCE(sess->logout_completed)) {
if (!traced) {
@@ -581,6 +582,9 @@ static void qlt_free_session_done(struct work_struct *work)
traced = true;
}
msleep(100);
+ cnt++;
+ if (cnt > 200)
+ break;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf087,