[PATCH] mfd: cros_ec: Only register a positive IRQ number

[egranata]

From: Enrico Granata <egran...@chromium.org>

Add a layer of sanity checking to cros_ec_register against attempting to
register IRQ values that are not strictly greater than 0.

Signed-off-by: Enrico Granata <egran...@chromium.org>
---
 drivers/mfd/cros_ec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
index 6acfe036d5222..ff8984a2b8c21 100644
--- a/drivers/mfd/cros_ec.c
+++ b/drivers/mfd/cros_ec.c
@@ -118,7 +118,7 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
                return err;
        }
 
-       if (ec_dev->irq) {
+       if (ec_dev->irq > 0) {
                err = devm_request_threaded_irq(dev, ec_dev->irq, NULL,
                                ec_irq_thread, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
                                "chromeos-ec", ec_dev);
-- 
2.21.0.225.g810b269d1ac-goog