Re: [PATCH -next] rtc: drop unused ret variable orphaned by misc_deregister becoming void

From: Geert Uytterhoeven
Date: Tue Sep 01 2015 - 13:37:14 EST


On Sat, Aug 22, 2015 at 9:26 PM, Paul Gortmaker
<paul.gortmaker@xxxxxxxxxxxxx> wrote:
> In commit f368ed6088ae9c1fbe1c897bb5f215ce5e63fa1e ("char: make
> misc_deregister a void function") this ret variable became unused
> which now generates a compile warning. Get rid of it.
>
> Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
> Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
> Cc: rtc-linux@xxxxxxxxxxxxxxxx
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>

Acked-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>

It's funny how these things end up in mainline, despite at least two
people providing a patch.

> ---
> drivers/rtc/rtc-ds1374.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
> index 7067232ba507..742ac67eb702 100644
> --- a/drivers/rtc/rtc-ds1374.c
> +++ b/drivers/rtc/rtc-ds1374.c
> @@ -663,9 +663,8 @@ static int ds1374_probe(struct i2c_client *client,
> static int ds1374_remove(struct i2c_client *client)
> {
> struct ds1374 *ds1374 = i2c_get_clientdata(client);
> -#ifdef CONFIG_RTC_DRV_DS1374_WDT
> - int res;
>
> +#ifdef CONFIG_RTC_DRV_DS1374_WDT
> misc_deregister(&ds1374_miscdev);
> ds1374_miscdev.parent = NULL;
> unregister_reboot_notifier(&ds1374_wdt_notifier);

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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