[jgunthorpe:smmuv3_nesting 16/17] drivers/iommu/intel/svm.c:614:10: error: incompatible integer to pointer conversion returning 'int' from a function with result type 'struct iommu_domain *'

[jgunthorpe:smmuv3_nesting 16/17] drivers/iommu/intel/svm.c:614:10: error: incompatible integer to pointer conversion returning 'int' from a function with result type 'struct iommu_domain *'

[kernel test robot]

tree:   https://github.com/jgunthorpe/linux smmuv3_nesting
head:   fa1528253d221071f2c743b194d5aebad4b55a93
commit: 5675560a272cf55e51613638426723221922c75a [16/17] iommu/vt-d: Check if SVA is supported when attaching the SVA domain
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20241019/202410191934.kB3gdW2G-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241019/202410191934.kB3gdW2G-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/202410191934.kB3gdW2G-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/iommu/intel/svm.c:614:10: error: incompatible integer to pointer conversion returning 'int' from a function with result type 'struct iommu_domain *' [-Wint-conversion]
     614 |                 return ret;
         |                        ^~~
   1 error generated.


vim +614 drivers/iommu/intel/svm.c

   605	
   606	struct iommu_domain *intel_svm_domain_alloc(struct device *dev,
   607						    struct mm_struct *mm)
   608	{
   609		struct dmar_domain *domain;
   610		int ret;
   611	
   612		ret = intel_iommu_sva_supported(dev);
   613		if (ret)
 > 614			return ret;

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