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-rw-r--r--drivers/staging/speakup/serialio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/speakup/serialio.c b/drivers/staging/speakup/serialio.c
index 969373201356..8d2f7c672cc6 100644
--- a/drivers/staging/speakup/serialio.c
+++ b/drivers/staging/speakup/serialio.c
@@ -162,6 +162,7 @@ static void spk_serial_send_xchar(char ch)
static void spk_serial_tiocmset(unsigned int set, unsigned int clear)
{
int old = inb(speakup_info.port_tts + UART_MCR);
+
outb((old & ~clear) | set, speakup_info.port_tts + UART_MCR);
}