ieee802154: hwsim: propagate genlmsg_reply return code

[ Upstream commit 19b39a25388e71390e059906c979f87be4ef0c71 ]

genlmsg_reply can fail, so propagate its return code
Signed-off-by: NLi RongQing <lirongqing@baidu.com>
Signed-off-by: NStefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: NSasha Levin (Microsoft) <sashal@kernel.org>

drivers/net/ieee802154/mac802154_hwsim.c

@@ -332,7 +332,7 @@ static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
 			goto out_err;
 		}
 
-		genlmsg_reply(skb, info);
+		res = genlmsg_reply(skb, info);
 		break;
 	}