diff --git a/[refs] b/[refs] index 24a07308f2b6..1c778fade906 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: f3270f6ef7d60251617f9d4c08f76ec01c647aa4 +refs/heads/master: 0f347bb9136f55ff575d55441a29e92c16e87fb0 diff --git a/trunk/arch/arm/common/gic.c b/trunk/arch/arm/common/gic.c index 4deece5fbdf4..2ae0bd1c907d 100644 --- a/trunk/arch/arm/common/gic.c +++ b/trunk/arch/arm/common/gic.c @@ -125,12 +125,11 @@ static void gic_set_cpu(unsigned int irq, cpumask_t mask_val) } #endif -static void fastcall gic_handle_cascade_irq(unsigned int irq, - struct irq_desc *desc) +static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc) { struct gic_chip_data *chip_data = get_irq_data(irq); struct irq_chip *chip = get_irq_chip(irq); - unsigned int cascade_irq; + unsigned int cascade_irq, gic_irq; unsigned long status; /* primary controller ack'ing */ @@ -140,16 +139,15 @@ static void fastcall gic_handle_cascade_irq(unsigned int irq, status = readl(chip_data->cpu_base + GIC_CPU_INTACK); spin_unlock(&irq_controller_lock); - cascade_irq = (status & 0x3ff); - if (cascade_irq > 1020) + gic_irq = (status & 0x3ff); + if (gic_irq == 1023) goto out; - if (cascade_irq < 32 || cascade_irq >= NR_IRQS) { - do_bad_IRQ(cascade_irq, desc); - goto out; - } - cascade_irq += chip_data->irq_offset; - generic_handle_irq(cascade_irq); + cascade_irq = gic_irq + chip_data->irq_offset; + if (unlikely(gic_irq < 32 || gic_irq > 1020 || cascade_irq >= NR_IRQS)) + do_bad_IRQ(cascade_irq, desc); + else + generic_handle_irq(cascade_irq); out: /* primary controller unmasking */