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path: root/drivers/tty/serial/serial_core.c
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Diffstat (limited to 'drivers/tty/serial/serial_core.c')
-rw-r--r--drivers/tty/serial/serial_core.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 3fe5689..0fb3f7c 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;
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