From: Himanshu Madhani <himanshu.madhani@cavium.com>
Date: Fri, 28 Sep 2018 11:02:38 -0700
Subject: [PATCH] scsi: qla2xxx: Return switch command on a timeout
Git-commit: ef801f07e7b3cc1786d8ab1b4fdf069cc2a136d2
Patch-mainline: v4.20-rc1
References: bsc#1108870
This patch fixes commit bcc71cc3cde1 ("scsi: qla2xxx: Fix for double
free of SRB structure") which placed code in wrong routines.
Also updated the use of WARN_ON() to WARN_ON_ONCE() to prevent
flooding log messages.
Fixes: bcc71cc3cde1 ("scsi: qla2xxx: Fix for double free of SRB structure")
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/qla2xxx/qla_init.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index ea7951eb05ce..c72d8012fe2a 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -54,7 +54,7 @@ qla2x00_sp_timeout(struct timer_list *t)
unsigned long flags;
struct qla_hw_data *ha = sp->vha->hw;
- WARN_ON(irqs_disabled());
+ WARN_ON_ONCE(irqs_disabled());
spin_lock_irqsave(&ha->hardware_lock, flags);
req = sp->qpair->req;
req->outstanding_cmds[sp->handle] = NULL;
@@ -792,6 +792,9 @@ qla24xx_async_gnl_sp_done(void *s, int res)
sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
sp->u.iocb_cmd.u.mbx.in_mb[2]);
+ if (res == QLA_FUNCTION_TIMEOUT)
+ return;
+
sp->fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
memset(&ea, 0, sizeof(ea));
ea.sp = sp;
@@ -974,17 +977,13 @@ void qla24xx_async_gpdb_sp_done(void *s, int res)
"Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
sp->name, res, fcport->port_name, mb[1], mb[2]);
- fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
-
- if (res == QLA_FUNCTION_TIMEOUT)
- return;
-
if (res == QLA_FUNCTION_TIMEOUT) {
dma_pool_free(sp->vha->hw->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
sp->u.iocb_cmd.u.mbx.in_dma);
return;
}
+ fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
memset(&ea, 0, sizeof(ea));
ea.event = FCME_GPDB_DONE;
ea.fcport = fcport;
--
2.16.4