mfd: Fix resource reclaim for max8998

Properly free irq and unregister max8998->rtc device in
max8998_i2c_probe() error path and max8998_i2c_remove().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/max8998.c

@@ -153,6 +153,8 @@ static int max8998_i2c_probe(struct i2c_client *i2c,
 
 err:
 	mfd_remove_devices(max8998->dev);
+	max8998_irq_exit(max8998);
+	i2c_unregister_device(max8998->rtc);
 	kfree(max8998);
 	return ret;
 }
@@ -162,6 +164,8 @@ static int max8998_i2c_remove(struct i2c_client *i2c)
 	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
 	mfd_remove_devices(max8998->dev);
+	max8998_irq_exit(max8998);
+	i2c_unregister_device(max8998->rtc);
 	kfree(max8998);
 
 	return 0;