Warnings before patch:
files: ['kernel/trace/trace_output.c']
Warning: kernel/trace/trace_output.c:223 No description found for return value of 'trace_print_hex_seq'
Warning: kernel/trace/trace_output.c:453 No description found for return value of 'trace_print_lat_fmt'
Warning: kernel/trace/trace_output.c:787 No description found for return value of 'ftrace_find_event'
Warning: kernel/trace/trace_output.c:844 No description found for return value of 'register_trace_event'
Warning: kernel/trace/trace_output.c:902 No description found for return value of 'unregister_trace_event'

Current warnings:
files: ['kernel/trace/trace_output.c']
Warning: kernel/trace/trace_output.c:223 No description found for return value of 'trace_print_hex_seq'
Warning: kernel/trace/trace_output.c:453 No description found for return value of 'trace_print_lat_fmt'
Warning: kernel/trace/trace_output.c:787 No description found for return value of 'ftrace_find_event'
Warning: kernel/trace/trace_output.c:844 No description found for return value of 'register_trace_event'
Warning: kernel/trace/trace_output.c:902 No description found for return value of 'unregister_trace_event'

Warnings before: 5 after: 5