HID: uclogic: Do not initialize non-USB devices (8547b778) · Commits · 戴 / test

Do not try to initialize UC-Logic tablets if the underlying device is not a USB device, but e.g. a uhid device. Signed-off-by:

drivers/hid/hid-uclogic-params.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -826,7 +826,8 @@ cleanup:
		* uclogic_params_cleanup()). Not modified in case of error.
		* Cannot be NULL.
		* @hdev: The HID device of the tablet interface to initialize and get
		* parameters from. Cannot be NULL.
		* parameters from. Cannot be NULL. Must be using the USB low-level
		* driver, i.e. be an actual USB tablet.
		*
		* Returns:
		* Zero, if successful. A negative errno code on error.
		@@ -844,7 +845,8 @@ int uclogic_params_init(struct uclogic_params *params,
		struct uclogic_params p = {0, };

		/* Check arguments */
		if (params == NULL \|\| hdev == NULL) {
		if (params == NULL \|\| hdev == NULL \|\|
		!hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
		rc = -EINVAL;
		goto cleanup;
		}