nfc: Send same info for both of NFC_CMD_GET_DEVICE and NFC_EVENT_DEVICE_ADDED

Now, NFC_EVENT_DEVICE_ADDED doesn't send NFC_ATTR_RF_MODE. But
NFC_CMD_GET_DEVICE send.

To get NFC_ATTR_RF_MODE, we have to call NFC_CMD_GET_DEVICE just for
NFC_ATTR_RF_MODE when get NFC_EVENT_DEVICE_ADDED.

This fixes those inconsistent.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

net/nfc/netlink.c

@@ -303,6 +303,17 @@ free_msg:
 	return -EMSGSIZE;
 }
 
+static int nfc_genl_setup_device_added(struct nfc_dev *dev, struct sk_buff *msg)
+{
+	if (nla_put_string(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)) ||
+	    nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
+	    nla_put_u32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols) ||
+	    nla_put_u8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up) ||
+	    nla_put_u8(msg, NFC_ATTR_RF_MODE, dev->rf_mode))
+		return -1;
+	return 0;
+}
+
 int nfc_genl_device_added(struct nfc_dev *dev)
 {
 	struct sk_buff *msg;
@@ -317,10 +328,7 @@ int nfc_genl_device_added(struct nfc_dev *dev)
 	if (!hdr)
 		goto free_msg;
 
-	if (nla_put_string(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)) ||
-	    nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
-	    nla_put_u32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols) ||
-	    nla_put_u8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up))
+	if (nfc_genl_setup_device_added(dev, msg))
 		goto nla_put_failure;
 
 	genlmsg_end(msg, hdr);
@@ -596,11 +604,7 @@ static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev,
 	if (cb)
 		genl_dump_check_consistent(cb, hdr, &nfc_genl_family);
 
-	if (nla_put_string(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)) ||
-	    nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
-	    nla_put_u32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols) ||
-	    nla_put_u8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up) ||
-	    nla_put_u8(msg, NFC_ATTR_RF_MODE, dev->rf_mode))
+	if (nfc_genl_setup_device_added(dev, msg))
 		goto nla_put_failure;
 
 	genlmsg_end(msg, hdr);