mfd: cros_ec: Free IRQ automatically

Free the IRQ we might have requested when removing the cros_ec device,
so we can unload and reload the driver properly.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
index 1e52769..58e0506 100644 (file)
--- a/drivers/mfd/cros_ec.c
+++ b/drivers/mfd/cros_ec.c
@@ -119,9 +119,9 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
        }
 
        if (ec_dev->irq) {
-               err = request_threaded_irq(ec_dev->irq, NULL, ec_irq_thread,
-                                          IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-                                          "chromeos-ec", ec_dev);
+               err = devm_request_threaded_irq(dev, ec_dev->irq, NULL,
+                               ec_irq_thread, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+                               "chromeos-ec", ec_dev);
                if (err) {
                        dev_err(dev, "Failed to request IRQ %d: %d",
                                ec_dev->irq, err);
@@ -135,7 +135,7 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
                dev_err(dev,
                        "Failed to register Embedded Controller subdevice %d\n",
                        err);
-               goto fail_mfd;
+               return err;
        }
 
        if (ec_dev->max_passthru) {
@@ -153,7 +153,7 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
                        dev_err(dev,
                                "Failed to register Power Delivery subdevice %d\n",
                                err);
-                       goto fail_mfd;
+                       return err;
                }
        }
 
@@ -162,7 +162,7 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
                if (err) {
                        mfd_remove_devices(dev);
                        dev_err(dev, "Failed to register sub-devices\n");
-                       goto fail_mfd;
+                       return err;
                }
        }
 
@@ -178,11 +178,6 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
        dev_info(dev, "Chrome EC device registered\n");
 
        return 0;
-
-fail_mfd:
-       if (ec_dev->irq)
-               free_irq(ec_dev->irq, ec_dev);
-       return err;
 }
 EXPORT_SYMBOL(cros_ec_register);
 
@@ -190,9 +185,6 @@ int cros_ec_remove(struct cros_ec_device *ec_dev)
 {
        mfd_remove_devices(ec_dev->dev);
 
-       if (ec_dev->irq)
-               free_irq(ec_dev->irq, ec_dev);
-
        return 0;
 }
 EXPORT_SYMBOL(cros_ec_remove);