On Fri, 2015-02-20 at 16:07 +0100, Cédric Le Goater wrote:
> Signed-off-by: Cédric Le Goater <c...@fr.ibm.com>
> ---
> arch/powerpc/platforms/powernv/opal-sensor.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/powerpc/platforms/powernv/opal-sensor.c
> b/arch/powerpc/platforms/powernv/opal-sensor.c
> index 4ab67ef7abc9..544292f2020f 100644
> --- a/arch/powerpc/platforms/powernv/opal-sensor.c
> +++ b/arch/powerpc/platforms/powernv/opal-sensor.c
> @@ -72,6 +72,9 @@ static __init int opal_sensor_init(void)
> struct platform_device *pdev;
> struct device_node *sensor;
>
> + if (!opal_check_token(OPAL_SENSOR_READ))
> + return -ENODEV;
> +
> sensor = of_find_node_by_path("/ibm,opal/sensors");
> if (!sensor) {
> pr_err("Opal node 'sensors' not found\n");
Are you actually seeing this in practice?
It's a bit annoying that we have to check for the token, and then also check
the device tree. It would be nice if one implied the presence of the other.
cheers
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