MXC: remove BUG_ON in interrupt handler

On i.MX31 I sometimes get spurious interrupts. There is no need
to crash the whole system when this happens. Instead, silently
ignore it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

diff --git a/arch/arm/plat-mxc/gpio.c b/arch/arm/plat-mxc/gpio.c
index c6483bad8a2652c3fbfc098ced8ba809e7d4ccba..89e95798cc3ba096aa09f1bf0e0a7bf8b42ff82e 100644 (file)
--- a/arch/arm/plat-mxc/gpio.c
+++ b/arch/arm/plat-mxc/gpio.c
@@ -124,7 +124,7 @@ static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 
        irq_stat = __raw_readl(port->base + GPIO_ISR) &
                        __raw_readl(port->base + GPIO_IMR);
-       BUG_ON(!irq_stat);
+
        mxc_gpio_irq_handler(port, irq_stat);
 }
 #endif