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drivers: bluetooth: hci_qca: Add check to prevent kernel null pointer dereference

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Piecuuu 2026-06-28 18:43:50 +02:00
parent 719c6740da
commit bc597109ce
1 changed files with 6 additions and 0 deletions
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6
drivers/bluetooth/hci_qca.c
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@ -1694,6 +1694,12 @@ static int qca_regulator_init(struct hci_uart *hu)
* off the voltage regulator. * off the voltage regulator.
*/ */
qcadev = serdev_device_get_drvdata(hu->serdev); 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) { if (!qcadev->bt_power->vregs_on) {
serdev_device_close(hu->serdev); serdev_device_close(hu->serdev);
ret = qca_regulator_enable(qcadev); ret = qca_regulator_enable(qcadev);