In the general case, the resources are properly released by devm without needing to do anything. However, when unplugging the wireless receiver, the kernel segfaults from time to time while calling devres_release_all(). I think in that case the resources attempt to access hid_get_drvdata(hdev) which has been set to null while leaving wacom_remove(). Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx> --- drivers/hid/wacom_sys.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index 23b272a..734100a 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -2495,6 +2495,8 @@ static void wacom_remove(struct hid_device *hdev) if (hdev->bus == BUS_BLUETOOTH) device_remove_file(&hdev->dev, &dev_attr_speed); + wacom_release_resources(wacom); + hid_set_drvdata(hdev, NULL); } -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
