linux-kernel - Re: [RESEND PATCH v2] sign-file: Fix incorrect return values check

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Date:   Tue, 21 Nov 2023 01:44:03 +0200
From:   "Jarkko Sakkinen" <jarkko@...nel.org>
To:     "Yusong Gao" <a869920004@...il.com>, <davem@...emloft.net>,
        <dhowells@...hat.com>, <dwmw2@...radead.org>,
        <zohar@...ux.ibm.com>, <herbert@...dor.apana.org.au>,
        <lists@...ience.com>, <dimitri.ledkov@...onical.com>
Cc:     <keyrings@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-crypto@...r.kernel.org>
Subject: Re: [RESEND PATCH v2] sign-file: Fix incorrect return values check

On Mon Nov 20, 2023 at 3:33 AM EET, Yusong Gao wrote:
> There are some wrong return values check in sign-file when call OpenSSL
> API. For example the CMS_final() return 1 for success or 0 for failure.

Why not make it a closed sentence and list the functions that need to be
changed?

> The ERR() check cond is wrong because of the program only check the
> return value is < 0 instead of <= 0.
>

Lacking Fixes tag(s). See: ttps://www.kernel.org/doc/html/latest/process/submitting-patches.html

> Link:
> https://www.openssl.org/docs/manmaster/man3/CMS_final.html
> https://www.openssl.org/docs/manmaster/man3/i2d_CMS_bio_stream.html
> https://www.openssl.org/docs/manmaster/man3/i2d_PKCS7_bio.html
> https://www.openssl.org/docs/manmaster/man3/BIO_free.html

Replace with

Link: https://www.openssl.org/docs/manmaster/man3/

BR, Jarkko