From bc597109ce0cfa217c34ae64662c20fb26ff1761 Mon Sep 17 00:00:00 2001
From: Piecuuu <56731916+Piecuuu@users.noreply.github.com>
Date: Sun, 28 Jun 2026 18:43:50 +0200
Subject: [PATCH] drivers: bluetooth: hci_qca: Add check to prevent kernel null
 pointer dereference

---
 drivers/bluetooth/hci_qca.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 11df067f0f25..b6b98a29a415 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1694,6 +1694,12 @@ static int qca_regulator_init(struct hci_uart *hu)
 	 * off the voltage regulator.
 	 */
 	qcadev = serdev_device_get_drvdata(hu->serdev);
+
+	if (!qcadev || !qcadev->bt_power) {
+		bt_dev_err(hu->hdev, "qcadev or bt_power is NULL");
+		return -ENODEV;
+	}
+
 	if (!qcadev->bt_power->vregs_on) {
 		serdev_device_close(hu->serdev);
 		ret = qca_regulator_enable(qcadev);