qeth: display "undefined" value of sysfs-attribute "layer2"
If nothing has been written into the qeth sysfs-attribute layer2,
its value is "-1" meaning "not yet defined". But the value is
displayed as "1" meaning "layer2 selected". The patch changes the
reading of this "-1"-value to "-1" to make clear the layer2-attribute
has not yet been defined.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c
index 568465d..33505c2 100644
--- a/drivers/s390/net/qeth_core_sys.c
+++ b/drivers/s390/net/qeth_core_sys.c
@@ -364,7 +364,7 @@
if (!card)
return -EINVAL;
- return sprintf(buf, "%i\n", card->options.layer2 ? 1:0);
+ return sprintf(buf, "%i\n", card->options.layer2);
}
static ssize_t qeth_dev_layer2_store(struct device *dev,