Warnings before patch:
files: ['drivers/iommu/omap-iommu.c']
Warning: drivers/iommu/omap-iommu.c:59 No description found for return value of 'to_omap_domain'
Warning: drivers/iommu/omap-iommu.c:329 No description found for return value of 'load_iotlb_entry'
Warning: drivers/iommu/omap-iommu.c:666 No description found for return value of 'omap_iopgtable_store_entry'
Warning: drivers/iommu/omap-iommu.c:757 No description found for return value of 'iopgtable_clear_entry'
Warning: drivers/iommu/omap-iommu.c:846 No description found for return value of 'omap_iommu_attach'
Warning: drivers/iommu/omap-iommu.c:949 No description found for return value of 'omap_iommu_domain_deactivate'
Warning: drivers/iommu/omap-iommu.c:978 No description found for return value of 'omap_iommu_domain_activate'
Warning: drivers/iommu/omap-iommu.c:1010 No description found for return value of 'omap_iommu_runtime_suspend'
Warning: drivers/iommu/omap-iommu.c:1052 No description found for return value of 'omap_iommu_runtime_resume'
Warning: drivers/iommu/omap-iommu.c:1097 No description found for return value of 'omap_iommu_prepare'
Warning: drivers/iommu/omap-iommu.c:59 No description found for return value of 'to_omap_domain'
Warning: drivers/iommu/omap-iommu.c:329 No description found for return value of 'load_iotlb_entry'
Warning: drivers/iommu/omap-iommu.c:666 No description found for return value of 'omap_iopgtable_store_entry'
Warning: drivers/iommu/omap-iommu.c:757 No description found for return value of 'iopgtable_clear_entry'
Warning: drivers/iommu/omap-iommu.c:846 No description found for return value of 'omap_iommu_attach'
Warning: drivers/iommu/omap-iommu.c:949 No description found for return value of 'omap_iommu_domain_deactivate'
Warning: drivers/iommu/omap-iommu.c:978 No description found for return value of 'omap_iommu_domain_activate'
Warning: drivers/iommu/omap-iommu.c:1010 No description found for return value of 'omap_iommu_runtime_suspend'
Warning: drivers/iommu/omap-iommu.c:1052 No description found for return value of 'omap_iommu_runtime_resume'
Warning: drivers/iommu/omap-iommu.c:1097 No description found for return value of 'omap_iommu_prepare'

Current warnings:
files: ['drivers/iommu/omap-iommu.c']
Warning: drivers/iommu/omap-iommu.c:59 No description found for return value of 'to_omap_domain'
Warning: drivers/iommu/omap-iommu.c:329 No description found for return value of 'load_iotlb_entry'
Warning: drivers/iommu/omap-iommu.c:666 No description found for return value of 'omap_iopgtable_store_entry'
Warning: drivers/iommu/omap-iommu.c:757 No description found for return value of 'iopgtable_clear_entry'
Warning: drivers/iommu/omap-iommu.c:846 No description found for return value of 'omap_iommu_attach'
Warning: drivers/iommu/omap-iommu.c:949 No description found for return value of 'omap_iommu_domain_deactivate'
Warning: drivers/iommu/omap-iommu.c:978 No description found for return value of 'omap_iommu_domain_activate'
Warning: drivers/iommu/omap-iommu.c:1010 No description found for return value of 'omap_iommu_runtime_suspend'
Warning: drivers/iommu/omap-iommu.c:1052 No description found for return value of 'omap_iommu_runtime_resume'
Warning: drivers/iommu/omap-iommu.c:1097 No description found for return value of 'omap_iommu_prepare'
Warning: drivers/iommu/omap-iommu.c:59 No description found for return value of 'to_omap_domain'
Warning: drivers/iommu/omap-iommu.c:329 No description found for return value of 'load_iotlb_entry'
Warning: drivers/iommu/omap-iommu.c:666 No description found for return value of 'omap_iopgtable_store_entry'
Warning: drivers/iommu/omap-iommu.c:757 No description found for return value of 'iopgtable_clear_entry'
Warning: drivers/iommu/omap-iommu.c:846 No description found for return value of 'omap_iommu_attach'
Warning: drivers/iommu/omap-iommu.c:949 No description found for return value of 'omap_iommu_domain_deactivate'
Warning: drivers/iommu/omap-iommu.c:978 No description found for return value of 'omap_iommu_domain_activate'
Warning: drivers/iommu/omap-iommu.c:1010 No description found for return value of 'omap_iommu_runtime_suspend'
Warning: drivers/iommu/omap-iommu.c:1052 No description found for return value of 'omap_iommu_runtime_resume'
Warning: drivers/iommu/omap-iommu.c:1097 No description found for return value of 'omap_iommu_prepare'

Warnings before: 20 after: 20