[PATCH 5.4 037/340] Bluetooth: drop HCI device reference before return

[Greg Kroah-Hartman]

From: Pan Bian <bianpan2016@xxxxxxx>

[ Upstream commit 5a3ef03afe7e12982dc3b978f4c5077c907f7501 ]

Call hci_dev_put() to decrement reference count of HCI device hdev if
fails to duplicate memory.

Fixes: 0b26ab9dce74 ("Bluetooth: AMP: Handle Accept phylink command status evt")
Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/bluetooth/a2mp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index cc26e4c047ad0..463bad58478b2 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -512,6 +512,7 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 		assoc = kmemdup(req->amp_assoc, assoc_len, GFP_KERNEL);
 		if (!assoc) {
 			amp_ctrl_put(ctrl);
+			hci_dev_put(hdev);
 			return -ENOMEM;
 		}
 
-- 
2.27.0