WARNING: 'avaiable' may be misspelled - perhaps 'available'?
WARNING: Prefer kzalloc_obj over kzalloc with sizeof
WARNING: line length of 81 exceeds 80 columns
WARNING: line length of 83 exceeds 80 columns
WARNING: line length of 84 exceeds 80 columns
WARNING: line length of 89 exceeds 80 columns
WARNING: line length of 91 exceeds 80 columns
WARNING: line length of 97 exceeds 80 columns