backport: HID: wacom: Add error check to wacom_parse_and_register()

   Added a variable check and
   transition in case of an error

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Denis Arefev <[email protected]>
Reviewed-by: Ping Cheng <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
[[email protected]: Imported into input-wacom repository (16a9c24f24fb)]
Signed-off-by: Joshua Dickens <[email protected]>
[[email protected]: Backported into input-wacom repository (b7c15ec)]
Signed-off-by: Joshua Dickens <[email protected]>

Author: Denis Arefev

3.17/wacom_sys.c

@@ -2314,8 +2314,13 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
 		goto fail_quirks;
 	}
 
-	if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR)
+	if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) {
 		error = hid_hw_open(hdev);
+		if (error) {
+			hid_err(hdev, "hw open failed\n");
+			goto fail_quirks;
+		}
+	}
 
 	wacom_set_shared_values(wacom_wac);
 	devres_close_group(&hdev->dev, wacom);