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authorChristian Engelmayer <cengelma@gmx.at>2015-07-19 21:43:02 +0200
committerOlof Johansson <olof@lixom.net>2015-10-07 14:34:26 -0700
commitf14ae099bdad32414ad968909973bfade9b37967 (patch)
treecee31a38b49fd797fc57fc2aae48f82e58b2019c /drivers/platform/chrome
parent88dfb8b43d557ee9b1c1ffd2c8d275dd479a66d4 (diff)
platform/chrome: cros_ec: Fix possible leak in led_rgb_store()
Function led_rgb_store() contains some direct returns in error cases that leak the already allocated cros_ec_command message structure. Make sure that 'msg' is freed in all exit paths. Detected by Coverity CID 1309666. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/platform/chrome')
-rw-r--r--drivers/platform/chrome/cros_ec_lightbar.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/drivers/platform/chrome/cros_ec_lightbar.c
index fc30a991b738..ff7640575c75 100644
--- a/drivers/platform/chrome/cros_ec_lightbar.c
+++ b/drivers/platform/chrome/cros_ec_lightbar.c
@@ -252,7 +252,7 @@ static ssize_t led_rgb_store(struct device *dev, struct device_attribute *attr,
ret = sscanf(buf, "%i", &val[i++]);
if (ret == 0)
- return -EINVAL;
+ goto exit;
if (i == 4) {
param = (struct ec_params_lightbar *)msg->data;
@@ -268,17 +268,15 @@ static ssize_t led_rgb_store(struct device *dev, struct device_attribute *attr,
if ((j++ % 4) == 0) {
ret = lb_throttle();
if (ret)
- return ret;
+ goto exit;
}
ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
if (ret < 0)
goto exit;
- if (msg->result != EC_RES_SUCCESS) {
- ret = -EINVAL;
+ if (msg->result != EC_RES_SUCCESS)
goto exit;
- }
i = 0;
ok = 1;