Re: [PATCH v2 04/10] mfd: cros_ec: Use a zero-length array for command data

Heiko Stuebner
2015-05-11T21:46:45Z

> Heiko, Alexandru,
>
> I don't have access to my Chromebooks right now but could you please test
> the following patch [0] to see if that is the problem?
>
> It seems I got it working on my test just out of luck since it happened that
> version was initialized to 0 due the data it was on the stack.
>
> Tomorrow when I've access to the Chromebooks I'll do more extensive testing
> and see if I can reproduce the issue and if my assumption is correct.
>
> Best regards,
> Javier
>
> [0]
> diff --git a/drivers/input/keyboard/cros_ec_keyb.c
> b/drivers/input/keyboard/cros_ec_keyb.c index ef3ba20f4560..4f233e248a4d
> 100644
> --- a/drivers/input/keyboard/cros_ec_keyb.c
> +++ b/drivers/input/keyboard/cros_ec_keyb.c
> @@ -151,6 +151,7 @@ static int cros_ec_keyb_get_state(struct cros_ec_keyb
> *ckdev, uint8_t *kb_state) int ret;
> struct cros_ec_command *msg = (struct cros_ec_command *)kb_state;
>
> + msg->version = 0;
> msg->command = EC_CMD_MKBP_STATE;
> msg->insize = ckdev->cols;
> msg->outsize = 0;

on my rk3288-pinky this seems to fix the issue ... keyboard works out of the
box again.

Heiko