tree 2d3c5fd21760d791ed1704b194cf9596370185c0
parent 350e3ade9ed0809a94c51db6ee66883a35f0d6c9
author Cornelia Huck <[EMAIL PROTECTED]> Sat, 30 Jul 2005 04:03:37 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Sat, 30 Jul 2005 05:01:14 -0700
[PATCH] s390: device recognition
Close a small window where a device may be not operational again after senseid
finished and the "same device" check fails due to dev=0000 by checking for dnv
after stsch() by then setting the device to not operational. (No need to
check for dnv in ccw_device_handle_oper() again since we don't do stsch() into
the subchannel's schib in the meantime and will get a crw anyway if the device
becomes not oper again).
Signed-off-by: Cornelia Huck <[EMAIL PROTECTED]>
Signed-off-by: Martin Schwidefsky <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
drivers/s390/cio/device_fsm.c | 3 +++
1 files changed, 3 insertions(+)
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -235,6 +235,9 @@ ccw_device_recog_done(struct ccw_device
sch->schib.pmcw.pam &
sch->schib.pmcw.pom &
sch->opm;
+ /* Check since device may again have become not operational. */
+ if (!sch->schib.pmcw.dnv)
+ state = DEV_STATE_NOT_OPER;
if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID)
/* Force reprobe on all chpids. */
old_lpm = 0;
-
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