Bluetooth: assign len after null check

len should be assigned after a null check

Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/net/bluetooth/mgmt_util.c b/net/bluetooth/mgmt_util.c
index edee60b..37eef2c 100644 (file)
--- a/net/bluetooth/mgmt_util.c
+++ b/net/bluetooth/mgmt_util.c
@@ -77,11 +77,12 @@ int mgmt_send_event_skb(unsigned short channel, struct sk_buff *skb, int flag,
 {
        struct hci_dev *hdev;
        struct mgmt_hdr *hdr;
-       int len = skb->len;
+       int len;
 
        if (!skb)
                return -EINVAL;
 
+       len = skb->len;
        hdev = bt_cb(skb)->mgmt.hdev;
 
        /* Time stamp */