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-rw-r--r--drivers/usb/gadget/function/f_accessory.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/f_accessory.c b/drivers/usb/gadget/function/f_accessory.c
index fbc22a3d2219..7aa2656a2328 100644
--- a/drivers/usb/gadget/function/f_accessory.c
+++ b/drivers/usb/gadget/function/f_accessory.c
@@ -811,6 +811,14 @@ static struct hid_driver acc_hid_driver = {
.probe = acc_hid_probe,
};
+static void acc_complete_setup_noop(struct usb_ep *ep, struct usb_request *req)
+{
+ /*
+ * Default no-op function when nothing needs to be done for the
+ * setup request
+ */
+}
+
int acc_ctrlrequest(struct usb_composite_dev *cdev,
const struct usb_ctrlrequest *ctrl)
{
@@ -838,6 +846,7 @@ int acc_ctrlrequest(struct usb_composite_dev *cdev,
schedule_delayed_work(
&dev->start_work, msecs_to_jiffies(10));
value = 0;
+ cdev->req->complete = acc_complete_setup_noop;
} else if (b_request == ACCESSORY_SEND_STRING) {
dev->string_index = w_index;
cdev->gadget->ep0->driver_data = dev;
@@ -846,10 +855,13 @@ int acc_ctrlrequest(struct usb_composite_dev *cdev,
} else if (b_request == ACCESSORY_SET_AUDIO_MODE &&
w_index == 0 && w_length == 0) {
dev->audio_mode = w_value;
+ cdev->req->complete = acc_complete_setup_noop;
value = 0;
} else if (b_request == ACCESSORY_REGISTER_HID) {
+ cdev->req->complete = acc_complete_setup_noop;
value = acc_register_hid(dev, w_value, w_index);
} else if (b_request == ACCESSORY_UNREGISTER_HID) {
+ cdev->req->complete = acc_complete_setup_noop;
value = acc_unregister_hid(dev, w_value);
} else if (b_request == ACCESSORY_SET_HID_REPORT_DESC) {
spin_lock_irqsave(&dev->lock, flags);
@@ -884,7 +896,7 @@ int acc_ctrlrequest(struct usb_composite_dev *cdev,
if (b_request == ACCESSORY_GET_PROTOCOL) {
*((u16 *)cdev->req->buf) = PROTOCOL_VERSION;
value = sizeof(u16);
-
+ cdev->req->complete = acc_complete_setup_noop;
/* clear any string left over from a previous session */
memset(dev->manufacturer, 0, sizeof(dev->manufacturer));
memset(dev->model, 0, sizeof(dev->model));