[PATCH] treewide: remove redundent IS_ERR() before error code check

Rafael J. Wysocki rafael at kernel.org
Tue Jan 7 01:52:57 PST 2020


On Mon, Jan 6, 2020 at 6:11 AM Masahiro Yamada <masahiroy at kernel.org> wrote:
>
> '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 at kernel.org>
> ---

Acked-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>

for the acpi/scan.c change, but there seems to be a typo in the subject:

s/redundent/redundant/



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