diff options
| -rw-r--r-- | drivers/tty/serial/omap-serial.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 2fa7b5ce2e0c..b0f46e666e1a 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -538,6 +538,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id) struct uart_omap_port *up = dev_id; unsigned int iir, lsr; unsigned int type; + irqreturn_t ret = IRQ_NONE; int max_count = 256; spin_lock(&up->port.lock); @@ -548,6 +549,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id) if (iir & UART_IIR_NO_INT) break; + ret = IRQ_HANDLED; lsr = serial_in(up, UART_LSR); /* extract IRQ type from IIR register */ @@ -586,7 +588,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id) pm_runtime_put_autosuspend(up->dev); up->port_activity = jiffies; - return IRQ_HANDLED; + return ret; } static unsigned int serial_omap_tx_empty(struct uart_port *port) |