From feac90d756c03b03b83fabe83571bd88ecc96b78 Mon Sep 17 00:00:00 2001 From: Zijun Hu Date: Fri, 29 May 2020 04:31:07 +0800 Subject: Bluetooth: hci_qca: Fix suspend/resume functionality failure @dev parameter of qca_suspend()/qca_resume() represents serdev_device, but it is mistook for hci_dev and causes succedent unexpected memory access. Fix by taking @dev as serdev_device. Fixes: 41d5b25fed0 ("Bluetooth: hci_qca: add PM support") Signed-off-by: Zijun Hu Reviewed-by: Matthias Kaehlcke Signed-off-by: Marcel Holtmann --- drivers/bluetooth/hci_qca.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/bluetooth') diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index e4a68238fcb9..adcbe00a2275 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1977,8 +1977,9 @@ static void qca_serdev_remove(struct serdev_device *serdev) static int __maybe_unused qca_suspend(struct device *dev) { - struct hci_dev *hdev = container_of(dev, struct hci_dev, dev); - struct hci_uart *hu = hci_get_drvdata(hdev); + struct serdev_device *serdev = to_serdev_device(dev); + struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev); + struct hci_uart *hu = &qcadev->serdev_hu; struct qca_data *qca = hu->priv; unsigned long flags; int ret = 0; @@ -2057,8 +2058,9 @@ error: static int __maybe_unused qca_resume(struct device *dev) { - struct hci_dev *hdev = container_of(dev, struct hci_dev, dev); - struct hci_uart *hu = hci_get_drvdata(hdev); + struct serdev_device *serdev = to_serdev_device(dev); + struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev); + struct hci_uart *hu = &qcadev->serdev_hu; struct qca_data *qca = hu->priv; clear_bit(QCA_SUSPENDING, &qca->flags); -- cgit v1.2.3