Marc Dietrich wrote at Friday, July 15, 2011 4:24 AM:
> This makes the WIFI rfkill gpio available to userspace. On boot,
> WIFI will be unblocked by default.
...
> +static void __init paz00_wifi_init(void)
> +{
> + int ret;
> +
> + /* unlock hw rfkill */
> + ret = gpio_request_one(TEGRA_WIFI_PWRN, GPIOF_OUT_INIT_HIGH,
> + "wifi pwrn");
> + if (ret) {
> + pr_warning("WIFI: could not requestrfkill gpio\n");
> + return;
> + }
> + gpio_export(TEGRA_WIFI_PWRN, 0);
> +};
Wouldn't you want to skip the gpio_export() call if the gpio_request()
call failed?
Of course, this is moot since Vasily mentioned the gpio-rfkill driver.
Luckily, that driver is already in Tegra's for-next, so it should be
pretty easy to adapt to.
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