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Subject[PATCH v2] iio: imu: adis16400: release allocated memory on failure
Date
In adis_update_scan_mode, if allocation for adis->buffer fails,
previously allocated adis->xfer needs to be released.

v2: added adis->xfer = NULL to avoid any potential double free.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
drivers/iio/imu/adis_buffer.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

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;
--
2.17.1
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