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[S390] cio: Catch operand exceptions on stsch. 

If we have a subchannel id which has been generated via
for_each_subchannel(), it might contain an invalid subchannel set id.
We need to catch the ensuing operand exception by using stsch_err()
instead of stsch() in all possible cases.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Cornelia Huck 2007-02-05 21:17:36 +01:00 committed by Martin Schwidefsky
parent d8c351a97e
commit 758976f9a5
2 changed files with 2 additions and 2 deletions
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2
drivers/s390/cio/chsc.c
View File

@ -608,7 +608,7 @@ __chp_add_new_sch(struct subchannel_id schid)
struct schib schib;
int ret;
if (stsch(schid, &schib))
if (stsch_err(schid, &schib))
/* We're through */
return need_rescan ? -EAGAIN : -ENXIO;

2
drivers/s390/cio/css.c
View File

@ -296,7 +296,7 @@ static int css_evaluate_new_subchannel(struct subchannel_id schid, int slow)
/* Will be done on the slow path. */
return -EAGAIN;
}
if (stsch(schid, &schib) || !schib.pmcw.dnv) {
if (stsch_err(schid, &schib) || !schib.pmcw.dnv) {
/* Unusable - ignore. */
return 0;
}