netdev - Re: [PATCH] treewide: remove redundent IS

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Date:   Mon, 6 Jan 2020 10:38:05 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        devicetree <devicetree@...r.kernel.org>,
        alsa-devel@...a-project.org, linux-acpi@...r.kernel.org,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Julia Lawall <julia.lawall@...6.fr>,
        "open list:MEMORY TECHNOLOGY..." <linux-mtd@...ts.infradead.org>,
        linux-crypto@...r.kernel.org,
        linux-clk <linux-clk@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-i2c <linux-i2c@...r.kernel.org>
Subject: Re: [PATCH] treewide: remove redundent IS_ERR() before error code check

pon., 6 sty 2020 o 06:00 Masahiro Yamada <masahiroy@...nel.org> napisał(a):
>
> 'PTR_ERR(p) == -E*' is a stronger condition than IS_ERR(p).
> Hence, IS_ERR(p) is unneeded.
>
> The semantic patch that generates this commit is as follows:
>
> // <smpl>
> @@
> expression ptr;
> constant error_code;
> @@
> -IS_ERR(ptr) && (PTR_ERR(ptr) == - error_code)
> +PTR_ERR(ptr) == - error_code
> // </smpl>
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

For GPIO:

Acked-by: Bartosz Golaszewski <bgolaszewski@...libre.com>