[PATCH] net: bluetooth: assign len after null check

[Qing Wang <wangqing@xxxxxxxx>]

From: Wang Qing <wangqing@xxxxxxxx>

len should be assigned after a null check

Signed-off-by: Wang Qing <wangqing@xxxxxxxx>
---
 net/bluetooth/mgmt_util.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt_util.c b/net/bluetooth/mgmt_util.c
index edee60b..37eef2c
--- 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 */
-- 
2.7.4