[chrome-os:chromeos-6.1 103/106] drivers/media/platform/mediatek/isp/isp_7x/mtk-hcp/mtk-hcp.c:243:24: sparse: sparse: Using plain integer as NULL pointer

[chrome-os:chromeos-6.1 103/106] drivers/media/platform/mediatek/isp/isp_7x/mtk-hcp/mtk-hcp.c:243:24: sparse: sparse: Using plain integer as NULL pointer

[kernel test robot]

tree:   https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-6.1
head:   e0a8432e750018bfe19402216e10553e4261aab7
commit: eba329daee52c5bc6a7d2ee896053b318f90ca50 [103/106] CHROMIUM: media: platform: mediatek: isp: NDD for IMGSYS RED SCP migration
config: arm64-randconfig-r111-20240523 (https://download.01.org/0day-ci/archive/20240523/202405231125.tVTr30AQ-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240523/202405231125.tVTr30AQ-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405231125.tVTr30AQ-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/media/platform/mediatek/isp/isp_7x/mtk-hcp/mtk-hcp.c:243:24: sparse: sparse: Using plain integer as NULL pointer
   drivers/media/platform/mediatek/isp/isp_7x/mtk-hcp/mtk-hcp.c:354:72: sparse: sparse: cast truncates bits from constant value (3ffffffff becomes ffffffff)
--
>> drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:87:16: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *reg_va @@     got void [noderef] __iomem * @@
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:87:16: sparse:     expected void *reg_va
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:87:16: sparse:     got void [noderef] __iomem *
>> drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:95:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got void *reg_va @@
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:95:25: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:95:25: sparse:     got void *reg_va
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:102:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got void *reg_va @@
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:102:33: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:102:33: sparse:     got void *reg_va
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:109:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got void *reg_va @@
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:109:33: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:109:33: sparse:     got void *reg_va
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:115:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got void *reg_va @@
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:115:17: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/media/platform/mediatek/isp/isp_7x/mtk-ipesys-me/mtk-ipesys-me.c:115:17: sparse:     got void *reg_va

vim +243 drivers/media/platform/mediatek/isp/isp_7x/mtk-hcp/mtk-hcp.c

   235	
   236	void *mtk_hcp_get_reserve_mem_virt(struct platform_device *pdev, unsigned int id)
   237	{
   238		struct mtk_hcp *hcp_dev = platform_get_drvdata(pdev);
   239		void *buffer;
   240	
   241		if ((id < 0) || (id >= NUMS_MEM_ID)) {
   242			pr_info("[HCP] no reserve memory for %d", id);
 > 243			return 0;
   244		} else {
   245			if (!hcp_dev->data->get_reserve_mem_virt) {
   246				dev_info(&pdev->dev, "%s: not supported\n", __func__);
   247				return NULL;
   248			}
   249	
   250			buffer = hcp_dev->data->get_reserve_mem_virt(id);
   251			if (!buffer)
   252				dev_info(&pdev->dev, "%s: get_reserve_mem_virt is null for id:%u\n", __func__, id);
   253	
   254			return buffer;
   255		}
   256	}
   257	EXPORT_SYMBOL(mtk_hcp_get_reserve_mem_virt);
   258	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki