We can't pass a NULL to input_unregister_device().
Fixes: 2a6cdbdd4cc0 ('HID: wacom: Introduce new 'touch_input' device')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 4c0ffca..44958d7 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -1271,11 +1271,13 @@ fail_leds:
pad_input_dev = NULL;
wacom_wac->pad_registered = false;
fail_register_pad_input:
- input_unregister_device(touch_input_dev);
+ if (touch_input_dev)
+ input_unregister_device(touch_input_dev);
wacom_wac->touch_input = NULL;
wacom_wac->touch_registered = false;
fail_register_touch_input:
- input_unregister_device(pen_input_dev);
+ if (pen_input_dev)
+ input_unregister_device(pen_input_dev);
wacom_wac->pen_input = NULL;
wacom_wac->pen_registered = false;
fail_register_pen_input:
--
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