diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_bcm7271.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_bcm7271.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_bcm7271.c b/drivers/tty/serial/8250/8250_bcm7271.c index af0e1c070187..d4b05d7ad9e8 100644 --- a/drivers/tty/serial/8250/8250_bcm7271.c +++ b/drivers/tty/serial/8250/8250_bcm7271.c @@ -605,9 +605,13 @@ static int brcmuart_startup(struct uart_port *port) /* * Disable the Receive Data Interrupt because the DMA engine * will handle this. + * + * Synchronize UART_IER access against the console. */ + spin_lock_irq(&port->lock); up->ier &= ~UART_IER_RDI; serial_port_out(port, UART_IER, up->ier); + spin_unlock_irq(&port->lock); priv->tx_running = false; priv->dma.rx_dma = NULL; |