From b8fde7224d771ce55bfd67cb57d7c4c8f430972f Mon Sep 17 00:00:00 2001 From: Stefan Haberland Date: Wed, 24 Mar 2010 11:49:54 +0100 Subject: [PATCH] [S390] dasd: check tsb validity Check tsb validity before the tcw_get_tsb function is called. Signed-off-by: Stefan Haberland Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_eckd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 01f4e7a..0cb2331 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -3155,11 +3155,11 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device, tsb = NULL; sense = NULL; - if (irb->scsw.tm.tcw) + if (irb->scsw.tm.tcw && (irb->scsw.tm.fcxs == 0x01)) tsb = tcw_get_tsb( (struct tcw *)(unsigned long)irb->scsw.tm.tcw); - if (tsb && (irb->scsw.tm.fcxs == 0x01)) { + if (tsb) { len += sprintf(page + len, KERN_ERR PRINTK_HEADER " tsb->length %d\n", tsb->length); len += sprintf(page + len, KERN_ERR PRINTK_HEADER -- 2.7.4