Warnings before patch:
files: ['drivers/tty/serial/mux.c']
Warning: drivers/tty/serial/mux.c:76 No description found for return value of 'get_mux_port_count'
Warning: drivers/tty/serial/mux.c:104 No description found for return value of 'mux_tx_empty'
Warning: drivers/tty/serial/mux.c:117 function parameter 'port' not described in 'mux_set_mctrl'
Warning: drivers/tty/serial/mux.c:128 No description found for return value of 'mux_get_mctrl'
Warning: drivers/tty/serial/mux.c:246 No description found for return value of 'mux_startup'
Warning: drivers/tty/serial/mux.c:284 No description found for return value of 'mux_type'
Warning: drivers/tty/serial/mux.c:308 No description found for return value of 'mux_request_port'
Warning: drivers/tty/serial/mux.c:337 No description found for return value of 'mux_verify_port'
Warning: drivers/tty/serial/mux.c:428 No description found for return value of 'mux_probe'
Warning: drivers/tty/serial/mux.c:539 No description found for return value of 'mux_init'
Warning: drivers/tty/serial/mux.c:76 No description found for return value of 'get_mux_port_count'
Warning: drivers/tty/serial/mux.c:104 No description found for return value of 'mux_tx_empty'
Warning: drivers/tty/serial/mux.c:117 function parameter 'port' not described in 'mux_set_mctrl'
Warning: drivers/tty/serial/mux.c:128 No description found for return value of 'mux_get_mctrl'
Warning: drivers/tty/serial/mux.c:246 No description found for return value of 'mux_startup'
Warning: drivers/tty/serial/mux.c:284 No description found for return value of 'mux_type'
Warning: drivers/tty/serial/mux.c:308 No description found for return value of 'mux_request_port'
Warning: drivers/tty/serial/mux.c:337 No description found for return value of 'mux_verify_port'
Warning: drivers/tty/serial/mux.c:428 No description found for return value of 'mux_probe'
Warning: drivers/tty/serial/mux.c:539 No description found for return value of 'mux_init'

Current warnings:
files: ['drivers/tty/serial/mux.c']
Warning: drivers/tty/serial/mux.c:76 No description found for return value of 'get_mux_port_count'
Warning: drivers/tty/serial/mux.c:104 No description found for return value of 'mux_tx_empty'
Warning: drivers/tty/serial/mux.c:117 function parameter 'port' not described in 'mux_set_mctrl'
Warning: drivers/tty/serial/mux.c:128 No description found for return value of 'mux_get_mctrl'
Warning: drivers/tty/serial/mux.c:246 No description found for return value of 'mux_startup'
Warning: drivers/tty/serial/mux.c:284 No description found for return value of 'mux_type'
Warning: drivers/tty/serial/mux.c:308 No description found for return value of 'mux_request_port'
Warning: drivers/tty/serial/mux.c:337 No description found for return value of 'mux_verify_port'
Warning: drivers/tty/serial/mux.c:428 No description found for return value of 'mux_probe'
Warning: drivers/tty/serial/mux.c:539 No description found for return value of 'mux_init'
Warning: drivers/tty/serial/mux.c:76 No description found for return value of 'get_mux_port_count'
Warning: drivers/tty/serial/mux.c:104 No description found for return value of 'mux_tx_empty'
Warning: drivers/tty/serial/mux.c:117 function parameter 'port' not described in 'mux_set_mctrl'
Warning: drivers/tty/serial/mux.c:128 No description found for return value of 'mux_get_mctrl'
Warning: drivers/tty/serial/mux.c:246 No description found for return value of 'mux_startup'
Warning: drivers/tty/serial/mux.c:284 No description found for return value of 'mux_type'
Warning: drivers/tty/serial/mux.c:308 No description found for return value of 'mux_request_port'
Warning: drivers/tty/serial/mux.c:337 No description found for return value of 'mux_verify_port'
Warning: drivers/tty/serial/mux.c:428 No description found for return value of 'mux_probe'
Warning: drivers/tty/serial/mux.c:539 No description found for return value of 'mux_init'

Warnings before: 20 after: 20