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path: root/drivers/serial/m32r_sio.c
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Diffstat (limited to 'drivers/serial/m32r_sio.c')
-rw-r--r--drivers/serial/m32r_sio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/serial/m32r_sio.c b/drivers/serial/m32r_sio.c
index 348ee2c..c2bb11c 100644
--- a/drivers/serial/m32r_sio.c
+++ b/drivers/serial/m32r_sio.c
@@ -421,7 +421,7 @@ static void transmit_chars(struct uart_sio_port *up)
up->port.icount.tx++;
if (uart_circ_empty(xmit))
break;
- while (!serial_in(up, UART_LSR) & UART_LSR_THRE);
+ while (!(serial_in(up, UART_LSR) & UART_LSR_THRE));
} while (--count > 0);
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