diff options
Diffstat (limited to 'drivers/staging/sb105x/sb_pci_mp.c')
| -rw-r--r-- | drivers/staging/sb105x/sb_pci_mp.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/staging/sb105x/sb_pci_mp.c b/drivers/staging/sb105x/sb_pci_mp.c index 23db32f07fd5..5cd3efff97d3 100644 --- a/drivers/staging/sb105x/sb_pci_mp.c +++ b/drivers/staging/sb105x/sb_pci_mp.c @@ -543,14 +543,14 @@ static int mp_startup(struct sb_uart_state *state, int init_hw) if (init_hw) { mp_change_speed(state, NULL); - if (info->tty->termios.c_cflag & CBAUD) + if (info->tty && (info->tty->termios.c_cflag & CBAUD)) uart_set_mctrl(port, TIOCM_RTS | TIOCM_DTR); } info->flags |= UIF_INITIALIZED; - - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->tty) + clear_bit(TTY_IO_ERROR, &info->tty->flags); } if (retval && capable(CAP_SYS_ADMIN)) @@ -1063,7 +1063,7 @@ static int mp_wait_modem_status(struct sb_uart_state *state, unsigned long arg) static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt) { - struct serial_icounter_struct icount; + struct serial_icounter_struct icount = {}; struct sb_uart_icount cnow; struct sb_uart_port *port = state->port; @@ -1216,7 +1216,7 @@ static int mp_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) return (inb(mp_devs[arg].option_reg_addr+MP_OPTR_IIR0+(state->port->line/8))); } case TIOCGGETPORTTYPE: - ret = get_device_type(arg);; + ret = get_device_type(arg); return ret; case TIOCSMULTIECHO: /* set to multi-drop mode(RS422) or echo mode(RS485)*/ outb( ( inb(info->interface_config_addr) & ~0x03 ) | 0x01 , @@ -1808,10 +1808,7 @@ void mp_unregister_driver(struct uart_driver *drv) drv->tty_driver = NULL; - if (drv->state) - { - kfree(drv->state); - } + kfree(drv->state); } |