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    Subject[RFC/PATCH 02/13] serial: omap: always return IRQ_HANDLED
    Date
    Even if we enter our IRQ handler just to notice
    that the our device didn't generate the IRQ,
    that still means "handling" and IRQ, so let's
    return IRQ_HANDLED.

    Signed-off-by: Felipe Balbi <balbi@ti.com>
    ---
    drivers/tty/serial/omap-serial.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
    index 5c0d0bc..b4b95fc 100644
    --- a/drivers/tty/serial/omap-serial.c
    +++ b/drivers/tty/serial/omap-serial.c
    @@ -417,7 +417,7 @@ static inline irqreturn_t serial_omap_irq(int irq, void *dev_id)
    if (iir & UART_IIR_NO_INT) {
    pm_runtime_mark_last_busy(&up->pdev->dev);
    pm_runtime_put_autosuspend(&up->pdev->dev);
    - return IRQ_NONE;
    + return IRQ_HANDLED;
    }

    spin_lock_irqsave(&up->port.lock, flags);
    --
    1.7.12.rc3


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