[intel-lts:5.10/yocto 10624/20393] drivers/media/mc/mc-device.c:602:17: sparse: sparse: incorrect type in initializer (different base types)

[intel-lts:5.10/yocto 10624/20393] drivers/media/mc/mc-device.c:602:17: sparse: sparse: incorrect type in initializer (different base types)

[kernel test robot]

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tree:   https://github.com/intel/linux-intel-lts.git 5.10/yocto
head:   2dafc777a64181d42982628c7f5907a03da5f070
commit: 9ca13cf0ba63b1a0d0701e6e1c97138b1879e0e7 [10624/20393] media: Add poll support
config: sparc64-randconfig-s032-20220208 (https://download.01.org/0day-ci/archive/20220211/202202110434.q4y5puUd-lkp(a)intel.com/config)
compiler: sparc64-linux-gcc (GCC) 11.2.0
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: v0.6.4-dirty
        # https://github.com/intel/linux-intel-lts/commit/9ca13cf0ba63b1a0d0701e6e1c97138b1879e0e7
        git remote add intel-lts https://github.com/intel/linux-intel-lts.git
        git fetch --no-tags intel-lts 5.10/yocto
        git checkout 9ca13cf0ba63b1a0d0701e6e1c97138b1879e0e7
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sparc64 SHELL=/bin/bash drivers/media/mc/

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/mc/mc-device.c:602:17: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted __poll_t ( *poll )( ... ) @@     got unsigned int ( * )( ... ) @@
   drivers/media/mc/mc-device.c:602:17: sparse:     expected restricted __poll_t ( *poll )( ... )
   drivers/media/mc/mc-device.c:602:17: sparse:     got unsigned int ( * )( ... )

vim +602 drivers/media/mc/mc-device.c

   597	
   598	static const struct media_file_operations media_device_fops = {
   599		.owner = THIS_MODULE,
   600		.open = media_device_open,
   601		.ioctl = media_device_ioctl,
 > 602		.poll = media_device_poll,
   603	#ifdef CONFIG_COMPAT
   604		.compat_ioctl = media_device_compat_ioctl,
   605	#endif /* CONFIG_COMPAT */
   606		.release = media_device_close,
   607	};
   608	

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