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[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>
hifive-unleashed-5.1
Cornelia Huck 2006-08-07 17:00:30 +02:00 committed by Martin Schwidefsky
parent 25a2001a28
commit 4bc0c4f9e7
1 changed files with 3 additions and 0 deletions
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3
drivers/s390/cio/device_ops.c
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@ -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)) {