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Message-ID: <84d6431f-bb55-4224-a4a5-45d7036f1e38@lunn.ch>
Date: Tue, 1 Aug 2023 11:56:12 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Herve Codina <herve.codina@...tlin.com>
Cc: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Qiang Zhao <qiang.zhao@....com>, Li Yang <leoyang.li@....com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
Shengjiu Wang <shengjiu.wang@...il.com>,
Xiubo Li <Xiubo.Lee@...il.com>,
Fabio Estevam <festevam@...il.com>,
Nicolin Chen <nicoleotsuka@...il.com>,
Christophe Leroy <christophe.leroy@...roup.eu>,
Randy Dunlap <rdunlap@...radead.org>, netdev@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, alsa-devel@...a-project.org,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v2 20/28] net: wan: Add framer framework support
> +int framer_pm_runtime_get(struct framer *framer)
> +{
> + int ret;
> +
> + if (!framer)
> + return 0;
Can framer be a NULL pointer? This sort of test often covers up
bugs. So either let it dereference the NULL pointer and opps, or
return -EINVAL.
Andrew
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