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Subject: Re: [PATCH] clk: pxa: fix NULL pointer dereference in pxa3xx_clk_update_accr
From:   Stephen Boyd <sboyd@kernel.org>
Cc:     Arnd Bergmann <arnd@arndb.de>, stable@vger.kernel.org,
        kernel test robot <lkp@intel.com>,
        Nathan Chancellor <nathan@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Tom Rix <trix@redhat.com>,
        Robert Jarzmik <robert.jarzmik@free.fr>,
        linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
        llvm@lists.linux.dev
To:     Arnd Bergmann <arnd@kernel.org>,
        Michael Turquette <mturquette@baylibre.com>
Date:   Wed, 14 Jun 2023 17:22:21 -0700
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Quoting Arnd Bergmann (2023-05-11 03:58:33)
> From: Arnd Bergmann <arnd@arndb.de>
>=20
> sparse points out an embarrasing bug in an older patch of mine,
> which uses the register offset instead of an __iomem pointer:
>=20
> drivers/clk/pxa/clk-pxa3xx.c:167:9: sparse: sparse: Using plain integer a=
s NULL pointer
>=20
> Unlike sparse, gcc and clang ignore this bug and fail to warn
> because a literal '0' is considered a valid representation of
> a NULL pointer.
>=20
> Fixes: 3c816d950a49 ("ARM: pxa: move clk register definitions to driver")
> Cc: stable@vger.kernel.org
> Reported-by: kernel test robot <lkp@intel.com>
> Link: https://lore.kernel.org/oe-kbuild-all/202305111301.RAHohdob-lkp@int=
el.com/
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---

Applied to clk-fixes