On Wed, Nov 30, 2016 at 8:22 PM, Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> We should return -EINVAL if get_cpu_device() fails.
>
> Fixes: 158c998ea44b ("ACPI / CPPC: add sysfs support to compute delivered performance")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
> index d0d0504..e0ea8f5 100644
> --- a/drivers/acpi/cppc_acpi.c
> +++ b/drivers/acpi/cppc_acpi.c
> @@ -784,8 +784,10 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
>
> /* Add per logical CPU nodes for reading its feedback counters. */
> cpu_dev = get_cpu_device(pr->id);
> - if (!cpu_dev)
> + if (!cpu_dev) {
> + ret = -EINVAL;
ret is initialized here AFAICS.
Do you that its value is not the right one?
> goto out_free;
> + }
>
> ret = kobject_init_and_add(&cpc_ptr->kobj, &cppc_ktype, &cpu_dev->kobj,
> "acpi_cppc");
> --
Thanks,
Rafael
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