Messages in this thread Patch in this message | | | Date | Fri, 2 Feb 2007 15:21:54 +0100 | From | Martin Schwidefsky <> | Subject | [S390] cio: Catch operand exceptions on stsch. |
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From: Cornelia Huck <cornelia.huck@de.ibm.com>
[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> ---
drivers/s390/cio/chsc.c | 2 +- drivers/s390/cio/css.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff -urpN linux-2.6/drivers/s390/cio/chsc.c linux-2.6-patched/drivers/s390/cio/chsc.c --- linux-2.6/drivers/s390/cio/chsc.c 2007-02-02 14:04:33.000000000 +0100 +++ linux-2.6-patched/drivers/s390/cio/chsc.c 2007-02-02 14:04:41.000000000 +0100 @@ -608,7 +608,7 @@ __chp_add_new_sch(struct subchannel_id s struct schib schib; int ret; - if (stsch(schid, &schib)) + if (stsch_err(schid, &schib)) /* We're through */ return need_rescan ? -EAGAIN : -ENXIO; diff -urpN linux-2.6/drivers/s390/cio/css.c linux-2.6-patched/drivers/s390/cio/css.c --- linux-2.6/drivers/s390/cio/css.c 2007-02-02 14:04:19.000000000 +0100 +++ linux-2.6-patched/drivers/s390/cio/css.c 2007-02-02 14:04:41.000000000 +0100 @@ -296,7 +296,7 @@ static int css_evaluate_new_subchannel(s /* 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; } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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