From f2edd9f67b8bdbe8cc3bc5c0ba4992e511147642 Mon Sep 17 00:00:00 2001 From: Sebastian Reichel Date: Sat, 15 Apr 2017 23:54:13 +0200 Subject: [PATCH] Bluetooth: hci_ll: Fix NULL pointer deref on FW upload failure Avoid NULL pointer dereference occurring due to freeing skb containing an error pointer. It can easily be triggered by using the driver with broken uart (i.e. due to misconfigured pinmuxing). Fixes: 371805522f87 ("bluetooth: hci_uart: add LL protocol serdev driver support") Signed-off-by: Sebastian Reichel Signed-off-by: Marcel Holtmann --- drivers/bluetooth/hci_ll.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c index 485e8eb04542..adc444f309a3 100644 --- a/drivers/bluetooth/hci_ll.c +++ b/drivers/bluetooth/hci_ll.c @@ -537,8 +537,7 @@ static int read_local_version(struct hci_dev *hdev) if (IS_ERR(skb)) { bt_dev_err(hdev, "Reading TI version information failed (%ld)", PTR_ERR(skb)); - err = PTR_ERR(skb); - goto out; + return PTR_ERR(skb); } if (skb->len != sizeof(*ver)) { err = -EILSEQ; -- 2.20.1