diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c index 928858dada756..70e2cfff8175f 100644 --- a/drivers/irqchip/irq-versatile-fpga.c +++ b/drivers/irqchip/irq-versatile-fpga.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -68,12 +69,16 @@ static void fpga_irq_unmask(struct irq_data *d) static void fpga_irq_handle(struct irq_desc *desc) { + struct irq_chip *chip = irq_desc_get_chip(desc); struct fpga_irq_data *f = irq_desc_get_handler_data(desc); - u32 status = readl(f->base + IRQ_STATUS); + u32 status; + chained_irq_enter(chip, desc); + + status = readl(f->base + IRQ_STATUS); if (status == 0) { do_bad_IRQ(desc); - return; + goto out; } do { @@ -82,6 +87,9 @@ static void fpga_irq_handle(struct irq_desc *desc) status &= ~(1 << irq); generic_handle_irq(irq_find_mapping(f->domain, irq)); } while (status); + +out: + chained_irq_exit(chip, desc); } /*