diff options
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 3fe56894974a..0fb3f7cce62a 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -2331,9 +2331,6 @@ static int uart_poll_init(struct tty_driver *driver, int line, char *options) int flow = 'n'; int ret = 0; - if (!state) - return -1; - tport = &state->port; mutex_lock(&tport->mutex); @@ -2368,13 +2365,12 @@ static int uart_poll_get_char(struct tty_driver *driver, int line) struct uart_port *port; int ret = -1; - if (state) { - port = uart_port_ref(state); - if (port) { - ret = port->ops->poll_get_char(port); - uart_port_deref(port); - } + port = uart_port_ref(state); + if (port) { + ret = port->ops->poll_get_char(port); + uart_port_deref(port); } + return ret; } @@ -2384,9 +2380,6 @@ static void uart_poll_put_char(struct tty_driver *driver, int line, char ch) struct uart_state *state = drv->state + line; struct uart_port *port; - if (!state) - return; - port = uart_port_ref(state); if (!port) return; |