[PATCH v2 3/5] serial: qcom_geni_serial: Process sysrq at port unlock time

Douglas Anderson
2018-10-30T22:11:05Z

Let's take advantage of the new ("serial: core: Allow processing sysrq
at port unlock time") to handle sysrqs more cleanly.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

drivers/tty/serial/qcom_geni_serial.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index b83e3554bced..29ddc1fc65f8 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -499,9 +499,7 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
continue;
}

- spin_unlock(&uport->lock);
- sysrq = uart_handle_sysrq_char(uport, buf[c]);
- spin_lock(&uport->lock);
+ sysrq = uart_prepare_sysrq_char(uport, buf[c]);

if (!sysrq)
tty_insert_flip_char(tport, buf[c], TTY_NORMAL);
@@ -811,7 +809,8 @@ static irqreturn_t qcom_geni_serial_isr(int isr, void *dev)
qcom_geni_serial_handle_rx(uport, drop_rx);

out_unlock:
- spin_unlock_irqrestore(&uport->lock, flags);
+ uart_unlock_and_check_sysrq(uport, flags);
+
return IRQ_HANDLED;
}

--
2.19.1.568.g152ad8e336-goog