From 4bc0c4f9e74e7a5d62ef4db923b377f2aa474a8f Mon Sep 17 00:00:00 2001
From: Cornelia Huck <cornelia.huck@de.ibm.com>
Date: Mon, 7 Aug 2006 17:00:30 +0200
Subject: [S390] retry after deferred condition code.
Do a retry of read device characteristics / read configuration
data when a deferred condition code 1 is encountered in
ccw_device_wake_up().
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
drivers/s390/cio/device_ops.c | 3 +++
1 file changed, 3 insertions(+)
(limited to 'drivers')
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index a60124264b..9e3de0bd59 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -263,6 +263,9 @@ ccw_device_wake_up(struct ccw_device *cdev, unsigned long ip, struct irb *irb)
/* Abuse intparm for error reporting. */
if (IS_ERR(irb))
cdev->private->intparm = -EIO;
+ else if (irb->scsw.cc == 1)
+ /* Retry for deferred condition code. */
+ cdev->private->intparm = -EAGAIN;
else if ((irb->scsw.dstat !=
(DEV_STAT_CHN_END|DEV_STAT_DEV_END)) ||
(irb->scsw.cstat != 0)) {
--
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