From: Dan Carpenter <error27@gmail.com>
To: Markus Elfring <Markus.Elfring@web.de>
Cc: netdev@vger.kernel.org, "Andrew Lunn" <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"MD Danish Anwar" <danishanwar@ti.com>,
"Michael Grzeschik" <mgr@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Uwe Kleine-König" <u.kleine-koenig@baylibre.com>,
"Vadim Fedorenko" <vadim.fedorenko@linux.dev>,
"Yibo Dong" <dong100@mucse.com>,
LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH net] net: rnpgbe: Pass an expression directly in rnpgbe_rm_adapter()
Date: Mon, 13 Jul 2026 11:04:46 +0300 [thread overview]
Message-ID: <alScHkiC3EmGzOlI@stanley.mountain> (raw)
In-Reply-To: <7958e26e-a4f9-48ee-8d79-3797016944c5@web.de>
On Sun, Jul 12, 2026 at 08:35:21PM +0200, Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sun, 12 Jul 2026 20:25:10 +0200
>
> The address of a data structure member was determined before
> a corresponding null pointer check in the implementation of
> the function “rnpgbe_rm_adapter”.
>
> Thus avoid the risk for undefined behaviour by omitting the variable “hw”.
> Pass the required address directly to a function call.
>
> This issue was detected by using the Coccinelle software.
>
> Fixes: 2ee95ec17e97c58b65e978a08b75fa8cb6424e4e ("net: rnpgbe: Add register_netdev")
There is no NULL dereference here. It's just pointer math.
No need for a Fixes tag.
regards,
dan carpenter
next prev parent reply other threads:[~2026-07-13 8:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-12 18:35 [PATCH net] net: rnpgbe: Pass an expression directly in rnpgbe_rm_adapter() Markus Elfring
2026-07-12 22:19 ` Vadim Fedorenko
2026-07-13 6:00 ` Markus Elfring
2026-07-13 8:04 ` Dan Carpenter [this message]
2026-07-13 8:22 ` [PATCH net] " Markus Elfring
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