diff mbox series

[v2,2/4] Bluetooth: qca: Fix nullptr dereference for non-serdev devices

Message ID 1713358336-29619-3-git-send-email-quic_zijuhu@quicinc.com
State Superseded
Headers show
Series Fix 2 tool btattach issues for QCA controllers | expand

Commit Message

quic_zijuhu April 17, 2024, 12:52 p.m. UTC 
hu->serdev is nullptr and will cause nullptr dereference if qca_setup()
is called by non-serdev device, fixed by null check before access.

Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
---
 drivers/bluetooth/hci_qca.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index fdaf83d817af..c04b97332bca 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1905,10 +1905,11 @@  static int qca_setup(struct hci_uart *hu)
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
-		qcadev = serdev_device_get_drvdata(hu->serdev);
-		if (qcadev->bdaddr_property_broken)
-			set_bit(HCI_QUIRK_BDADDR_PROPERTY_BROKEN, &hdev->quirks);
-
+		if (hu->serdev) {
+			qcadev = serdev_device_get_drvdata(hu->serdev);
+			if (qcadev->bdaddr_property_broken)
+				set_bit(HCI_QUIRK_BDADDR_PROPERTY_BROKEN, &hdev->quirks);
+		}
 		hci_set_aosp_capable(hdev);
 
 		ret = qca_read_soc_version(hdev, &ver, soc_type);