diff options
Diffstat (limited to 'drivers/tty/serial/8250.c')
| -rw-r--r-- | drivers/tty/serial/8250.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c index eeadf1b8e093..3a8e5bfe17e2 100644 --- a/drivers/tty/serial/8250.c +++ b/drivers/tty/serial/8250.c @@ -1619,11 +1619,13 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id) do { struct uart_8250_port *up; struct uart_port *port; + bool skip; up = list_entry(l, struct uart_8250_port, list); port = &up->port; + skip = pass_counter && up->port.flags & UPF_IIR_ONCE; - if (port->handle_irq(port)) { + if (!skip && port->handle_irq(port)) { handled = 1; end = NULL; } else if (end == NULL) |