diff options
| -rw-r--r-- | drivers/tty/serial/nwpserial.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/serial/nwpserial.c b/drivers/tty/serial/nwpserial.c index 549c70a2a63e..693bc6c2561e 100644 --- a/drivers/tty/serial/nwpserial.c +++ b/drivers/tty/serial/nwpserial.c @@ -149,7 +149,10 @@ static irqreturn_t nwpserial_interrupt(int irq, void *dev_id) tty_insert_flip_char(port, ch, TTY_NORMAL); } while (dcr_read(up->dcr_host, UART_LSR) & UART_LSR_DR); + spin_unlock(&up->port.lock); tty_flip_buffer_push(port); + spin_lock(&up->port.lock); + ret = IRQ_HANDLED; /* clear interrupt */ |