af_ieee802154: fix ioctl processing
fix two errors in ioctl processing:
1) if the ioctl isn't supported one should return -ENOIOCTLCMD
2) don't call ndo_do_ioctl if the device doesn't provide it
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
index 3bb6bdb..af66180 100644
--- a/net/ieee802154/af_ieee802154.c
+++ b/net/ieee802154/af_ieee802154.c
@@ -136,7 +136,7 @@
unsigned int cmd)
{
struct ifreq ifr;
- int ret = -EINVAL;
+ int ret = -ENOIOCTLCMD;
struct net_device *dev;
if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
@@ -146,8 +146,10 @@
dev_load(sock_net(sk), ifr.ifr_name);
dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
- if (dev->type == ARPHRD_IEEE802154 ||
- dev->type == ARPHRD_IEEE802154_PHY)
+
+ if ((dev->type == ARPHRD_IEEE802154 ||
+ dev->type == ARPHRD_IEEE802154_PHY) &&
+ dev->netdev_ops->ndo_do_ioctl)
ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))