[PATCH] Bluetooth: hci_uart: Fix false success return in hci_uart_setup()

[Gongwei Li <13875017792@163.com>]

From: Gongwei Li <ligongwei@kylinos.cn>

When reading the local version information for vendor detection
fails, the error is only printed and 0 is returned, which masks the
setup failure from the HCI core.

Return PTR_ERR(skb) instead.

Fixes: fb2ce8d11f039 ("Bluetooth: hci_uart: Add support for vendor detection flag")
Fixes: 82f5169bf3d3b ("Bluetooth: hci_uart: add serdev driver support library")
Cc: stable@vger.kernel.org
Signed-off-by: Gongwei Li <ligongwei@kylinos.cn>
---
 drivers/bluetooth/hci_ldisc.c  | 2 +-
 drivers/bluetooth/hci_serdev.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 2ad42c3bbaac..27644d2e53f8 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -451,7 +451,7 @@ static int hci_uart_setup(struct hci_dev *hdev)
 	if (IS_ERR(skb)) {
 		BT_ERR("%s: Reading local version information failed (%ld)",
 		       hdev->name, PTR_ERR(skb));
-		return 0;
+		return PTR_ERR(skb);
 	}
 
 	if (skb->len != sizeof(*ver)) {
diff --git a/drivers/bluetooth/hci_serdev.c b/drivers/bluetooth/hci_serdev.c
index 593d9cefbbf9..d2eaf2f12aa2 100644
--- a/drivers/bluetooth/hci_serdev.c
+++ b/drivers/bluetooth/hci_serdev.c
@@ -221,7 +221,7 @@ static int hci_uart_setup(struct hci_dev *hdev)
 	if (IS_ERR(skb)) {
 		bt_dev_err(hdev, "Reading local version info failed (%ld)",
 			   PTR_ERR(skb));
-		return 0;
+		return PTR_ERR(skb);
 	}
 
 	if (skb->len != sizeof(*ver))
-- 
2.25.1