platform/chrome: cros_ec: Do not attempt to register a non-positive IRQ number

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 <egranata@chromium.org>
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>

diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cros_ec.c
index 925f84d..d3dfa27 100644 (file)
--- a/drivers/platform/chrome/cros_ec.c
+++ b/drivers/platform/chrome/cros_ec.c
@@ -149,7 +149,7 @@ 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,
                                                ec_irq_handler,
                                                ec_irq_thread,