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Commit b8fde722 authored by Stefan Haberland's avatar Stefan Haberland Committed by Martin Schwidefsky
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[S390] dasd: check tsb validity 



Check tsb validity before the tcw_get_tsb function is called.

Signed-off-by: default avatarStefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 4a31ba57

drivers/s390/block/dasd_eckd.c

+2 −2
Original line number Diff line number Diff line
@@ -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