The "unthrottle_timeout" is HZ/10 but mod_timer() takes a the actual
jiffie where you want it to timeout, not an offset.
Fixes: 5909c0bf9c7a ("serial/aspeed-vuart: Implement quick throttle mechanism")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/tty/serial/8250/8250_aspeed_vuart.c b/drivers/tty/serial/8250/8250_aspeed_vuart.c
index 023db3266757..435bec40dee6 100644
--- a/drivers/tty/serial/8250/8250_aspeed_vuart.c
+++ b/drivers/tty/serial/8250/8250_aspeed_vuart.c
@@ -226,7 +226,8 @@ static void aspeed_vuart_unthrottle_exp(struct timer_list *timer)
struct uart_8250_port *up = vuart->port;
if (!tty_buffer_space_avail(&up->port.state->port)) {
- mod_timer(&vuart->unthrottle_timer, unthrottle_timeout);
+ mod_timer(&vuart->unthrottle_timer,
+ jiffies + unthrottle_timeout);
return;
}
@@ -271,7 +272,7 @@ static int aspeed_vuart_handle_irq(struct uart_port *port)
if (!timer_pending(&vuart->unthrottle_timer)) {
vuart->port = up;
mod_timer(&vuart->unthrottle_timer,
- unthrottle_timeout);
+ jiffies + unthrottle_timeout);
}
} else {
--
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