Re: [PATCH] clk: pxa: fix NULL pointer dereference in pxa3xx_clk_update_accr

Quoting Arnd Bergmann (2023-05-11 03:58:33)

From: Arnd Bergmann arnd@arndb.de

sparse points out an embarrasing bug in an older patch of mine, which uses the register offset instead of an __iomem pointer:

drivers/clk/pxa/clk-pxa3xx.c:167:9: sparse: sparse: Using plain integer as NULL pointer

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.

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@intel.com/ Signed-off-by: Arnd Bergmann arnd@arndb.de

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Applied to clk-fixes