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8250_core: Fix unwanted TX chars write
[pandora-kernel.git]
/
drivers
/
tty
/
serial
/
8250
/
8250_core.c
diff --git
a/drivers/tty/serial/8250/8250_core.c
b/drivers/tty/serial/8250/8250_core.c
index
81f909c
..
0e1bf88
100644
(file)
--- a/
drivers/tty/serial/8250/8250_core.c
+++ b/
drivers/tty/serial/8250/8250_core.c
@@
-1520,7
+1520,7
@@
int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
status = serial8250_rx_chars(up, status);
}
serial8250_modem_status(up);
- if (
status & UART_LSR_THRE
)
+ if (
!up->dma && (status & UART_LSR_THRE)
)
serial8250_tx_chars(up);
spin_unlock_irqrestore(&port->lock, flags);