Re: [PATCH] platform/x86: Use ACPI_FAILURE at appropriate places

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On Mon, Sep 19, 2016 at 4:33 AM, Axel Lin <axel.lin@xxxxxxxxxx> wrote:
> Use ACPI_FAILURE() to replace !ACPI_SUCCESS(), this avoid !! operations.

I would agree that the main point is readability, not some unrealistic
compiler stupidity/

For sake of readability:
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>

>
> Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
> ---
>  drivers/platform/x86/intel-hid.c          | 6 +++---
>  drivers/platform/x86/intel-smartconnect.c | 2 +-
>  drivers/platform/x86/intel-vbtn.c         | 2 +-
>  drivers/platform/x86/panasonic-laptop.c   | 2 +-
>  drivers/platform/x86/thinkpad_acpi.c      | 2 +-
>  5 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
> index ed58742..00cbeca 100644
> --- a/drivers/platform/x86/intel-hid.c
> +++ b/drivers/platform/x86/intel-hid.c
> @@ -69,7 +69,7 @@ static int intel_hid_set_enable(struct device *device, int enable)
>
>         arg0.integer.value = enable;
>         status = acpi_evaluate_object(ACPI_HANDLE(device), "HDSM", &args, NULL);
> -       if (!ACPI_SUCCESS(status)) {
> +       if (ACPI_FAILURE(status)) {
>                 dev_warn(device, "failed to %sable hotkeys\n",
>                          enable ? "en" : "dis");
>                 return -EIO;
> @@ -148,7 +148,7 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
>         }
>
>         status = acpi_evaluate_integer(handle, "HDEM", NULL, &ev_index);
> -       if (!ACPI_SUCCESS(status)) {
> +       if (ACPI_FAILURE(status)) {
>                 dev_warn(&device->dev, "failed to get event index\n");
>                 return;
>         }
> @@ -167,7 +167,7 @@ static int intel_hid_probe(struct platform_device *device)
>         int err;
>
>         status = acpi_evaluate_integer(handle, "HDMM", NULL, &mode);
> -       if (!ACPI_SUCCESS(status)) {
> +       if (ACPI_FAILURE(status)) {
>                 dev_warn(&device->dev, "failed to read mode\n");
>                 return -ENODEV;
>         }
> diff --git a/drivers/platform/x86/intel-smartconnect.c b/drivers/platform/x86/intel-smartconnect.c
> index 04cf5df..bbe4c06 100644
> --- a/drivers/platform/x86/intel-smartconnect.c
> +++ b/drivers/platform/x86/intel-smartconnect.c
> @@ -29,7 +29,7 @@ static int smartconnect_acpi_init(struct acpi_device *acpi)
>         acpi_status status;
>
>         status = acpi_evaluate_integer(acpi->handle, "GAOS", NULL, &value);
> -       if (!ACPI_SUCCESS(status))
> +       if (ACPI_FAILURE(status))
>                 return -EINVAL;
>
>         if (value & 0x1) {
> diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
> index 146d02f..f04a394 100644
> --- a/drivers/platform/x86/intel-vbtn.c
> +++ b/drivers/platform/x86/intel-vbtn.c
> @@ -97,7 +97,7 @@ static int intel_vbtn_probe(struct platform_device *device)
>         int err;
>
>         status = acpi_evaluate_object(handle, "VBDL", NULL, NULL);
> -       if (!ACPI_SUCCESS(status)) {
> +       if (ACPI_FAILURE(status)) {
>                 dev_warn(&device->dev, "failed to read Intel Virtual Button driver\n");
>                 return -ENODEV;
>         }
> diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
> index 3f87097..59b8eb6 100644
> --- a/drivers/platform/x86/panasonic-laptop.c
> +++ b/drivers/platform/x86/panasonic-laptop.c
> @@ -458,7 +458,7 @@ static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
>
>         rc = acpi_evaluate_integer(pcc->handle, METHOD_HKEY_QUERY,
>                                    NULL, &result);
> -       if (!ACPI_SUCCESS(rc)) {
> +       if (ACPI_FAILURE(rc)) {
>                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
>                                  "error getting hotkey status\n"));
>                 return;
> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> index b65ce75..31fb979 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/thinkpad_acpi.c
> @@ -9018,7 +9018,7 @@ static int mute_led_on_off(struct tp_led_table *t, bool state)
>         acpi_handle temp;
>         int output;
>
> -       if (!ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) {
> +       if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) {
>                 pr_warn("Thinkpad ACPI has no %s interface.\n", t->name);
>                 return -EIO;
>         }
> --
> 2.7.4
>
> --
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-- 
With Best Regards,
Andy Shevchenko
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