linux-kernel - Re: [PATCH] powerpc/sysdev: fix incorrect use to determine if list is empty

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Message-Id: <164674126479.3322453.5888213344645127953.b4-ty@ellerman.id.au>
Date:   Tue, 08 Mar 2022 23:07:44 +1100
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Jakob Koschel <jakobkoschel@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linuxppc-dev@...ts.ozlabs.org, Paul Mackerras <paulus@...ba.org>,
        linux-kernel@...r.kernel.org,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Kumar Gala <galak@...nel.crashing.org>
Subject: Re: [PATCH] powerpc/sysdev: fix incorrect use to determine if list is empty

On Mon, 28 Feb 2022 15:24:33 +0100, Jakob Koschel wrote:
> 'gtm' will *always* be set by list_for_each_entry().
> It is incorrect to assume that the iterator value will be NULL if the
> list is empty.
> 
> Instead of checking the pointer it should be checked if
> the list is empty.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/sysdev: fix incorrect use to determine if list is empty
      https://git.kernel.org/powerpc/c/fa1321b11bd01752f5be2415e74a0e1a7c378262

cheers