iio: imu: adis16400: release allocated memory on failure

In adis_update_scan_mode, if allocation for adis->buffer fails,
previously allocated adis->xfer needs to be released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c
index 9ac8356d9a95..f446ff497809 100644
--- a/drivers/iio/imu/adis_buffer.c
+++ b/drivers/iio/imu/adis_buffer.c
@@ -78,8 +78,11 @@ int adis_update_scan_mode(struct iio_dev *indio_dev,
                 return -ENOMEM;
 
         adis->buffer = kcalloc(indio_dev->scan_bytes, 2, GFP_KERNEL);
-        if (!adis->buffer)
+        if (!adis->buffer) {
+                kfree(adis->xfer);
+                adis->xfer = NULL;
                 return -ENOMEM;
+        }
 
         rx = adis->buffer;
         tx = rx + scan_count;