ieee802154: fix error return code in ieee802154_add_iface()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: be51da0f3e34 ("ieee802154: Stop using NLA_PUT*().")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210508062517.2574-1-thunder.leizhen@huawei.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>

diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index 2cdc7e63fe172b4598c1848606e9cdbba54ed018..88215b5c93aa429bc9421745de9fcfb09843aa18 100644 (file)
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -241,8 +241,10 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info)
        }
 
        if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
-           nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name))
+           nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name)) {
+               rc = -EMSGSIZE;
                goto nla_put_failure;
+       }
        dev_put(dev);
 
        wpan_phy_put(phy);