diff options
Diffstat (limited to 'drivers/ptp/ptp_ixp46x.c')
| -rw-r--r-- | drivers/ptp/ptp_ixp46x.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/ptp/ptp_ixp46x.c b/drivers/ptp/ptp_ixp46x.c index ee4f183ef9ee..344a3bac210b 100644 --- a/drivers/ptp/ptp_ixp46x.c +++ b/drivers/ptp/ptp_ixp46x.c @@ -268,18 +268,19 @@ static int setup_interrupt(int gpio) return err; irq = gpio_to_irq(gpio); + if (irq < 0) + return irq; - if (NO_IRQ == irq) - return NO_IRQ; - - if (irq_set_irq_type(irq, IRQF_TRIGGER_FALLING)) { + err = irq_set_irq_type(irq, IRQF_TRIGGER_FALLING); + if (err) { pr_err("cannot set trigger type for irq %d\n", irq); - return NO_IRQ; + return err; } - if (request_irq(irq, isr, 0, DRIVER, &ixp_clock)) { + err = request_irq(irq, isr, 0, DRIVER, &ixp_clock); + if (err) { pr_err("request_irq failed for irq %d\n", irq); - return NO_IRQ; + return err; } return irq; |