On 6/24/2015 7:27 AM, Dan Carpenter wrote:
> 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>
>
Looks reasonable to me.
Reviewed-by: Jason Gerecke <jason.gerecke@xxxxxxxxx>
--
Jason
---
Now instead of four in the eights place /
you’ve got three, ‘Cause you added one /
(That is to say, eight) to the two, /
But you can’t take seven from three, /
So you look at the sixty-fours....
> 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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