linux-kernel - Re: [PATCH v2 4/6] rust: error: Add to

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Message-ID: <5c8c004e-f04f-febc-783e-13cbb8129688@gmail.com>
Date:   Wed, 29 Mar 2023 11:52:03 -0300
From:   Martin Rodriguez Reboredo <yakoyoku@...il.com>
To:     Asahi Lina <lina@...hilina.net>, Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Sven Van Asbroeck <thesven73@...il.com>
Cc:     Fox Chen <foxhlchen@...il.com>,
        Andreas Hindborg <a.hindborg@...sung.com>,
        rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
        asahi@...ts.linux.dev
Subject: Re: [PATCH v2 4/6] rust: error: Add to_result() helper

On 3/29/23 09:04, Asahi Lina wrote:
> [...]
> 
> +
> +/// Converts an integer as returned by a C kernel function to an error if it's negative, and
> +/// `Ok(())` otherwise.
> +pub fn to_result(err: core::ffi::c_int) -> Result {
> +    if err < 0 {
> +        Err(Error::from_errno(err))
> +    } else {
> +        Ok(())
> +    }
> +}
> 

Reviewed-by: Martin Rodriguez Reboredo