subsys: usb: stall if there is no data buffer (3a471e32) · Commits · Wenxi XU / zephyr

subsys/usb/usb_device.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -271,6 +271,13 @@ static void usb_handle_control_transfer(u8_t ep,
		/* Defaults for data pointer and residue */
		type = REQTYPE_GET_TYPE(setup->bmRequestType);
		usb_dev.data_buf = usb_dev.data_store[type];
		if (!usb_dev.data_buf) {
		SYS_LOG_DBG("buffer not available\n");
		usb_dc_ep_set_stall(USB_CONTROL_OUT_EP0);
		usb_dc_ep_set_stall(USB_CONTROL_IN_EP0);
		return;
		}

		usb_dev.data_buf_residue = setup->wLength;
		usb_dev.data_buf_len = setup->wLength;

		@@ -310,6 +317,7 @@ static void usb_handle_control_transfer(u8_t ep,
		usb_dev.data_buf_residue, &chunk) < 0) {
		SYS_LOG_DBG("Read DATA Packet failed\n");
		usb_dc_ep_set_stall(USB_CONTROL_IN_EP0);
		usb_dc_ep_set_stall(USB_CONTROL_OUT_EP0);
		return;
		}