From 908fd7e566b4c12e36e4487d2d5946de5e5ea30f Mon Sep 17 00:00:00 2001 From: Ruchika Kharwar Date: Wed, 17 Jul 2013 16:29:13 +0300 Subject: [PATCH] serial: omap: Fix IRQ handling return value Ensure the Interrupt handling routine return IRQ_HANDLED vs IRQ_NONE. Signed-off-by: Ruchika Kharwar Signed-off-by: Alexander Savchenko Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/omap-serial.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 72bb690829af..b0802149b3e7 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -485,7 +485,6 @@ 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); @@ -496,7 +495,6 @@ 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 */ @@ -535,7 +533,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id) pm_runtime_put_autosuspend(up->dev); up->port_activity = jiffies; - return ret; + return IRQ_HANDLED; } static unsigned int serial_omap_tx_empty(struct uart_port *port) -- 2.30.2