From: Sasha Levin <sashal@kernel.org>
Date: Thu, 30 Jul 2020 23:14:12 +0000 (-0400)
Subject: iio: imu: adis16400: fix memory leak
X-Git-Tag: v4.14.192~43
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8d75cc141d702ebc280dde2b32b50cfdea3a02b3;p=users%2Fdwmw2%2Flinux.git

iio: imu: adis16400: fix memory leak

[ Upstream commit 9c0530e898f384c5d279bfcebd8bb17af1105873 ]

In adis_update_scan_mode_burst, if adis->buffer allocation fails release
the adis->xfer.

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/iio/imu/adis16400_buffer.c b/drivers/iio/imu/adis16400_buffer.c
index e70a5339acb19..3fc11aec98b95 100644
--- a/drivers/iio/imu/adis16400_buffer.c
+++ b/drivers/iio/imu/adis16400_buffer.c
@@ -38,8 +38,11 @@ int adis16400_update_scan_mode(struct iio_dev *indio_dev,
 		return -ENOMEM;
 
 	adis->buffer = kzalloc(burst_length + sizeof(u16), GFP_KERNEL);
-	if (!adis->buffer)
+	if (!adis->buffer) {
+		kfree(adis->xfer);
+		adis->xfer = NULL;
 		return -ENOMEM;
+	}
 
 	tx = adis->buffer + burst_length;
 	tx[0] = ADIS_READ_REG(ADIS16400_GLOB_CMD);