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path: root/drivers/tty/serial/msm_serial.c
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Diffstat (limited to 'drivers/tty/serial/msm_serial.c')
-rw-r--r--drivers/tty/serial/msm_serial.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 4b6c78331a64..cedcc36762a2 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -174,6 +174,7 @@ static void handle_rx(struct uart_port *port)
while ((sr = msm_read(port, UART_SR)) & UART_SR_RX_READY) {
unsigned int c;
char flag = TTY_NORMAL;
+ int sysrq;
c = msm_read(port, UART_RF);
@@ -195,7 +196,10 @@ static void handle_rx(struct uart_port *port)
else if (sr & UART_SR_PAR_FRAME_ERR)
flag = TTY_FRAME;
- if (!uart_handle_sysrq_char(port, c))
+ spin_unlock(&port->lock);
+ sysrq = uart_handle_sysrq_char(port, c);
+ spin_lock(&port->lock);
+ if (!sysrq)
tty_insert_flip_char(tport, c, flag);
}