Re: [PATCH] tty/serial: digicolor: Fix digicolor-usart already registered warning

Hi Kefeng, On Fri, May 31 2019, Kefeng Wang wrote: > When modprobe/rmmod/modprobe module, if platform_driver_register() fails, > the kernel complained, > > proc_dir_entry 'driver/digicolor-usart' already registered > WARNING: CPU: 1 PID: 5636 at fs/proc/generic.c:360 proc_register+0x19d/0x270

[PATCH] tty/serial: digicolor: Fix digicolor-usart already registered warning

When modprobe/rmmod/modprobe module, if platform_driver_register() fails, the kernel complained, proc_dir_entry 'driver/digicolor-usart' already registered WARNING: CPU: 1 PID: 5636 at fs/proc/generic.c:360 proc_register+0x19d/0x270 Fix this by adding uart_unregister_driver() when