staging:iio:resolver:ad2s90 fix registration of null pointer

When the new allocation code was introduced a stray pointer
to iio_dev structure was left in the chip state structure.
This was never set but was then registered with the core.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c
index 3739bd24951c..161442ee7d32 100644
--- a/drivers/staging/iio/resolver/ad2s90.c
+++ b/drivers/staging/iio/resolver/ad2s90.c
@@ -23,7 +23,6 @@
 
 struct ad2s90_state {
         struct mutex lock;
-        struct iio_dev *idev;
         struct spi_device *sdev;
         u8 rx[2] ____cacheline_aligned;
 };
@@ -87,7 +86,7 @@ static int __devinit ad2s90_probe(struct spi_device *spi)
         indio_dev->info = &ad2s90_info;
         indio_dev->modes = INDIO_DIRECT_MODE;
 
-        ret = iio_device_register(st->idev);
+        ret = iio_device_register(indio_dev);
         if (ret)
                 goto error_free_dev;
 
@@ -99,7 +98,7 @@ static int __devinit ad2s90_probe(struct spi_device *spi)
         return 0;
 
 error_free_dev:
-        iio_free_device(st->idev);
+        iio_free_device(indio_dev);
 error_ret:
         return ret;
 }