patch "iio: mma8452: Add missed iio_device_unregister() call in" added to staging-linus

patch "iio: mma8452: Add missed iio_device_unregister() call in" added to staging-linus

[gregkh]

This is a note to let you know that I've just added the patch titled

    iio: mma8452: Add missed iio_device_unregister() call in

to my staging git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.

If you have any questions about this process, please let me know.


From d7369ae1f4d7cffa7574d15e1f787dcca184c49d Mon Sep 17 00:00:00 2001
From: Chuhong Yuan <hslester96@gmail.com>
Date: Thu, 28 May 2020 14:41:21 +0800
Subject: iio: mma8452: Add missed iio_device_unregister() call in
 mma8452_probe()

The function iio_device_register() was called in mma8452_probe().
But the function iio_device_unregister() was not called after
a call of the function mma8452_set_freefall_mode() failed.
Thus add the missed function call for one error case.

Fixes: 1a965d405fc6 ("drivers:iio:accel:mma8452: added cleanup provision in case of failure.")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/accel/mma8452.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 00e100fc845a..813bca7cfc3e 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1685,10 +1685,13 @@ static int mma8452_probe(struct i2c_client *client,
 
 	ret = mma8452_set_freefall_mode(data, false);
 	if (ret < 0)
-		goto buffer_cleanup;
+		goto unregister_device;
 
 	return 0;
 
+unregister_device:
+	iio_device_unregister(indio_dev);
+
 buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 
-- 
2.27.0