CC'ing Konrad and David.
On Tue, 5 May 2015, Hanjun Guo wrote:
> Before xen_acpi_processor_enable() is called, struct acpi_processor *pr is
> allocated in xen_acpi_processor_add() and checked if it's NULL, so no need
> to check again when passed to xen_acpi_processor_enable(), just remove it.
>
> Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
> CC: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
> CC: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> ---
> drivers/xen/xen-acpi-cpuhotplug.c | 8 +-------
> 1 file changed, 1 insertion(+), 7 deletions(-)
>
> diff --git a/drivers/xen/xen-acpi-cpuhotplug.c b/drivers/xen/xen-acpi-cpuhotplug.c
> index 5a62aa0..f4a3694 100644
> --- a/drivers/xen/xen-acpi-cpuhotplug.c
> +++ b/drivers/xen/xen-acpi-cpuhotplug.c
> @@ -46,13 +46,7 @@ static int xen_acpi_processor_enable(struct acpi_device *device)
> unsigned long long value;
> union acpi_object object = { 0 };
> struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
> - struct acpi_processor *pr;
> -
> - pr = acpi_driver_data(device);
> - if (!pr) {
> - pr_err(PREFIX "Cannot find driver data\n");
> - return -EINVAL;
> - }
> + struct acpi_processor *pr = acpi_driver_data(device);
>
> if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) {
> /* Declared with "Processor" statement; match ProcessorID */
> --
> 1.9.1
>
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