[chrome-os:chromeos-5.4 31/243] drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c:56:41: sparse: sparse: Using plain integer as NULL pointer

[chrome-os:chromeos-5.4 31/243] drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c:56:41: sparse: sparse: Using plain integer as NULL pointer

[kernel test robot]

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tree:   https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4
head:   52d269f32500581166246e0e494b2b62d979dba6
commit: f04d055758de31185e1b298147cae3de6349dba1 [31/243] CHROMIUM: media: mtk-vcodec: Use component framework to manage each hardware information
config: nios2-randconfig-s032-20210420 (attached as .config)
compiler: nios2-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel
        git fetch --no-tags chrome-os chromeos-5.4
        git checkout f04d055758de31185e1b298147cae3de6349dba1
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=nios2 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c:56:41: sparse: sparse: Using plain integer as NULL pointer
   drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c: note: in included file (through arch/nios2/include/asm/io.h, include/linux/io.h, include/linux/irq.h, ...):
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:225:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:225:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:225:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:225:22: sparse:     got restricted __le32 [usertype]

vim +56 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c

    50	
    51	static void mtk_vdec_hw_unbind(struct device *dev, struct device *master,
    52		void *data)
    53	{
    54		struct mtk_vcodec_dev *comp_priv = dev_get_drvdata(dev);
    55	
  > 56		comp_priv->reg_base[VDEC_SYS] = 0;
    57	}
    58	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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