From 807fb6d8afad1552c6981256a83bc2c0ce4e2125 Mon Sep 17 00:00:00 2001
From: Saurav Kashyap <saurav.kashyap@qlogic.com>
Date: Wed, 21 Nov 2012 02:40:36 -0500
Subject: [PATCH] [SCSI] qla2xxx: Ignore driver ack bit if corresponding
presence bit is not set.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
drivers/scsi/qla2xxx/qla_os.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 67f7b56e1b0bcf..9ad66a3abe12a4 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -4230,7 +4230,7 @@ qla83xx_need_reset_handler(scsi_qla_host_t *vha)
while (1) {
qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
- if (drv_ack == drv_presence)
+ if ((drv_ack & drv_presence) == drv_presence)
break;
if (time_after_eq(jiffies, ack_timeout)) {
--
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