staging:iio:ade7753: Do not return a error in remove function

In the Linux device driver model the remove callback is not allowed to fail and
the device will be removed regardless of the return value of the remove
callback. So if we abort in the remove function and do not free all resources we
will create a resource leak. Also all kinds of undefined behaviour are expected
to happen since the IIO device is still there while its parent is already gone.

The error which the driver tries to handle in the remove function is
non-critical, so we can just ignore it and continue to free all resources and
remove the IIO device.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index 380c05e7f7ff261b46c7cd8395ee2d298b186afb..8b9eceb66b372170facea9f8c45c29e6efb51188 100644 (file)
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -557,18 +557,13 @@ error_ret:
 /* fixme, confirm ordering in this function */
 static int __devexit ade7753_remove(struct spi_device *spi)
 {
-       int ret;
        struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
        iio_device_unregister(indio_dev);
-
-       ret = ade7753_stop_device(&(indio_dev->dev));
-       if (ret)
-               goto err_ret;
-
+       ade7753_stop_device(&indio_dev->dev);
        iio_device_free(indio_dev);
-err_ret:
-       return ret;
+
+       return 0;
 }
 
 static struct spi_driver ade7753_driver = {