From: Geert Uytterhoeven <geert+renesas@xxxxxxxxxxxxxx>
Suggested-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxxxxxxx>
---
drivers/tty/serial/serial_core.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 8ee90f731f31..21084f0b8ea4 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2647,6 +2647,7 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *uport)
{
struct uart_state *state = drv->state + uport->line;
struct tty_port *port = &state->port;
+ struct tty_struct *tty;
int ret = 0;
BUG_ON(in_interrupt());
@@ -2675,8 +2676,11 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *uport)
*/
tty_unregister_device(drv->tty_driver, uport->line);
- if (port->tty)
+ tty = tty_port_tty_get(port);
+ if (tty) {
tty_vhangup(port->tty);
+ tty_kref_put(tty);
+ }
/*
* If the port is used as a console, unregister it, and power it down
--
1.7.9.5
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