linux-kernel - Re: [PATCH] phy: ocelot-serdes: Fix IS_ERR vs NULL bug in serdes

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Message-ID: <56f80d5d-3b92-466c-adf6-5f1374cf9622@web.de>
Date: Thu, 31 Oct 2024 17:59:02 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Jinjie Ruan <ruanjinjie@...wei.com>, linux-phy@...ts.infradead.org,
 Colin Foster <colin.foster@...advantage.com>,
 "David S. Miller" <davem@...emloft.net>,
 Florian Fainelli <florian.fainelli@...adcom.com>,
 Kishon Vijay Abraham I <kishon@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Linus Walleij <linus.walleij@...aro.org>, Thierry Reding
 <treding@...dia.com>, Vinod Koul <vkoul@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] phy: ocelot-serdes: Fix IS_ERR vs NULL bug in
 serdes_probe()

> dev_get_regmap() return NULL and never return ERR_PTR().

                   call can return a null pointer.
It will not return error pointers.

> check NULL to fix it.

Thus apply a null pointer check instead.

Regards,
Markus