Warnings before patch:
files: ['mm/vmalloc.c']
Warning: mm/vmalloc.c:747 No description found for return value of 'vm_area_map_pages'
Warning: mm/vmalloc.c:3593 No description found for return value of 'vmap_pfn'
Warning: mm/vmalloc.c:747 No description found for return value of 'vm_area_map_pages'
Warning: mm/vmalloc.c:3593 No description found for return value of 'vmap_pfn'

Current warnings:
files: ['mm/vmalloc.c']
Warning: mm/vmalloc.c:747 No description found for return value of 'vm_area_map_pages'
Warning: mm/vmalloc.c:3594 No description found for return value of 'vmap_pfn'
Warning: mm/vmalloc.c:747 No description found for return value of 'vm_area_map_pages'
Warning: mm/vmalloc.c:3594 No description found for return value of 'vmap_pfn'

Warnings before: 4 after: 4