From 76b11f8e270f04851774ff64b16e29e5a43d3a1a Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Mon, 11 Jan 2010 02:50:50 +0000 Subject: qeth: HiperSockets Network Traffic Analyzer New feature to trace HiperSockets network traffic for debugging purposes. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_sys.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/s390/net/qeth_core_sys.c') diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c index 9ff2b36fdc43..ac2239a4f133 100644 --- a/drivers/s390/net/qeth_core_sys.c +++ b/drivers/s390/net/qeth_core_sys.c @@ -118,7 +118,7 @@ static ssize_t qeth_dev_portno_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - unsigned int portno; + unsigned int portno, limit; if (!card) return -EINVAL; @@ -128,9 +128,11 @@ static ssize_t qeth_dev_portno_store(struct device *dev, return -EPERM; portno = simple_strtoul(buf, &tmp, 16); - if (portno > QETH_MAX_PORTNO) { + if (portno > QETH_MAX_PORTNO) + return -EINVAL; + limit = (card->ssqd.pcnt ? card->ssqd.pcnt - 1 : card->ssqd.pcnt); + if (portno > limit) return -EINVAL; - } card->info.portno = portno; return count; -- cgit v1.2.3