linux-kernel - Re: [PATCH v6 39/57] rtc: Remove dev_err() usage after platform_get

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Message-ID: <CAMuHMdXArXKeE0OUaBN2f8bkAakuV6+55acNw9t9Fc5uyk_LXg@mail.gmail.com>
Date:   Thu, 8 Aug 2019 10:05:46 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        linux-rtc@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v6 39/57] rtc: Remove dev_err() usage after platform_get_irq()

Hi Stephen,

On Tue, Jul 30, 2019 at 8:21 PM Stephen Boyd <swboyd@...omium.org> wrote:
> We don't need dev_err() messages when platform_get_irq() fails now that
> platform_get_irq() prints an error message itself when something goes
> wrong. Let's remove these prints with a simple semantic patch.
>
> // <smpl>
> @@
> expression ret;
> struct platform_device *E;
> @@
>
> ret =
> (
> platform_get_irq(E, ...)
> |
> platform_get_irq_byname(E, ...)
> );
>
> if ( \( ret < 0 \| ret <= 0 \) )
> {
> (
> -if (ret != -EPROBE_DEFER)
> -{ ...
> -dev_err(...);
> -... }
> |
> ...
> -dev_err(...);
> )
> ...
> }
> // </smpl>
>
> While we're here, remove braces on if statements that only have one
> statement (manually).
>
> Cc: Alessandro Zummo <a.zummo@...ertech.it>
> Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>
> Cc: linux-rtc@...r.kernel.org
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>
> ---
>
> Please apply directly to subsystem trees
>
>  drivers/rtc/rtc-88pm80x.c    | 1 -
>  drivers/rtc/rtc-88pm860x.c   | 4 +---
>  drivers/rtc/rtc-ac100.c      | 4 +---
>  drivers/rtc/rtc-armada38x.c  | 5 +----
>  drivers/rtc/rtc-asm9260.c    | 4 +---
>  drivers/rtc/rtc-at91rm9200.c | 4 +---
>  drivers/rtc/rtc-at91sam9.c   | 4 +---
>  drivers/rtc/rtc-bd70528.c    | 5 +----
>  drivers/rtc/rtc-davinci.c    | 4 +---
>  drivers/rtc/rtc-jz4740.c     | 4 +---
>  drivers/rtc/rtc-max77686.c   | 5 +----
>  drivers/rtc/rtc-mt7622.c     | 1 -
>  drivers/rtc/rtc-pic32.c      | 4 +---
>  drivers/rtc/rtc-pm8xxx.c     | 4 +---
>  drivers/rtc/rtc-puv3.c       | 8 ++------
>  drivers/rtc/rtc-pxa.c        | 8 ++------
>  drivers/rtc/rtc-rk808.c      | 6 +-----
>  drivers/rtc/rtc-s3c.c        | 8 ++------
>  drivers/rtc/rtc-sc27xx.c     | 4 +---
>  drivers/rtc/rtc-spear.c      | 4 +---
>  drivers/rtc/rtc-stm32.c      | 1 -
>  drivers/rtc/rtc-sun6i.c      | 4 +---
>  drivers/rtc/rtc-sunxi.c      | 4 +---
>  drivers/rtc/rtc-tegra.c      | 4 +---
>  drivers/rtc/rtc-vt8500.c     | 4 +---
>  drivers/rtc/rtc-xgene.c      | 4 +---
>  drivers/rtc/rtc-zynqmp.c     | 8 ++------
>  27 files changed, 28 insertions(+), 92 deletions(-)

Failed to catch:
drivers/rtc/rtc-sh.c:   ret = platform_get_irq(pdev, 0);
drivers/rtc/rtc-sh.c-   if (unlikely(ret <= 0)) {
drivers/rtc/rtc-sh.c-           dev_err(&pdev->dev, "No IRQ resource\n");
drivers/rtc/rtc-sh.c-           return -ENOENT;
drivers/rtc/rtc-sh.c-   }
drivers/rtc/rtc-sh.c-

Note that there are two more calls for optional interrupts:
drivers/rtc/rtc-sh.c:   rtc->carry_irq = platform_get_irq(pdev, 1);
drivers/rtc/rtc-sh.c:   rtc->alarm_irq = platform_get_irq(pdev, 2);

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

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