CHECK: Please don't use multiple blank lines
CHECK: multiple assignments should be avoided
WARNING: Missing a blank line after declarations
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
WARNING: line length of 107 exceeds 80 columns
WARNING: line length of 108 exceeds 80 columns
WARNING: line length of 88 exceeds 80 columns
WARNING: return of an errno should typically be negative (ie: return -ENOENT)