Re: [PATCH] staging: gpib: Fix a dereference before null check issue

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To: Paolo Perego <pperego@xxxxxxx>, linux-staging@xxxxxxxxxxxxxxx
Subject: Re: [PATCH] staging: gpib: Fix a dereference before null check issue
From: Markus Elfring <Markus.Elfring@xxxxxx>
Date: Wed, 20 Nov 2024 17:42:06 +0100
Cc: LKML <linux-kernel@xxxxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Dan Carpenter <dan.carpenter@xxxxxxxxxx>, Dave Penkler <dpenkler@xxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Kees Bakker <kees@xxxxxxxxxxxx>
In-reply-to: <20241120144653.377795-1-pperego@suse.de>
References: <20241120144653.377795-1-pperego@suse.de>
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User-agent: Mozilla Thunderbird

…
> The check ad line 1450 suggests that a_priv can be NULL, however it has

            at?


> been derefenced before, in the interface_to_usbdev() call.
…

       dereferenced?


See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.12#n94

Regards,
Markus

References:
- [PATCH] staging:gpib: Fix a dereference before null check issue
  - From: Paolo Perego

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