--- zzzz-none-000/linux-3.10.107/Documentation/io-mapping.txt 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/Documentation/io-mapping.txt 2021-02-04 17:41:59.000000000 +0000 @@ -38,7 +38,7 @@ void io_mapping_unmap_atomic(void *vaddr) - 'vaddr' must be the the value returned by the last + 'vaddr' must be the value returned by the last io_mapping_map_atomic_wc call. This unmaps the specified page and allows the task to sleep once again.