| Message ID | 20240319154611.2492-3-johan+linaro@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Bluetooth: qca: fix NULL-deref on non-serdev setup | expand |
| Context | Check | Description |
|---|---|---|
| tedd_an/pre-ci_am | success | Success |
| tedd_an/CheckPatch | success | CheckPatch PASS |
| tedd_an/GitLint | success | Gitlint PASS |
| tedd_an/SubjectPrefix | success | Gitlint PASS |
| tedd_an/IncrementalBuild | success | Incremental Build PASS |
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 84f728943962..6a69a7f9ef64 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1960,8 +1960,10 @@ static int qca_setup(struct hci_uart *hu) qca_debugfs_init(hdev); hu->hdev->hw_error = qca_hw_error; hu->hdev->cmd_timeout = qca_cmd_timeout; - if (device_can_wakeup(hu->serdev->ctrl->dev.parent)) - hu->hdev->wakeup = qca_wakeup; + if (hu->serdev) { + if (device_can_wakeup(hu->serdev->ctrl->dev.parent)) + hu->hdev->wakeup = qca_wakeup; + } } else if (ret == -ENOENT) { /* No patch/nvm-config found, run with original fw/config */ set_bit(QCA_ROM_FW, &qca->flags);
Qualcomm ROME controllers can be registered from the Bluetooth line discipline and in this case the HCI UART serdev pointer is NULL. Add the missing sanity check to prevent a NULL-pointer dereference when setup() is called for a non-serdev controller. Fixes: e9b3e5b8c657 ("Bluetooth: hci_qca: only assign wakeup with serial port support") Cc: stable@vger.kernel.org # 6.2 Cc: Zhengping Jiang <jiangzp@google.com> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> --- drivers/bluetooth/hci_qca.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)