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| author | Christian Engelmayer <cengelma@gmx.at> | 2015-07-18 19:30:33 +0200 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2015-10-07 23:34:26 +0200 |
| commit | 88dfb8b43d557ee9b1c1ffd2c8d275dd479a66d4 (patch) | |
| tree | 28b6c0730aaf7861ef271c4e6fd1402c48e0c999 /drivers | |
| parent | platform/chrome: Enable Chrome platforms on 64-bit ARM (diff) | |
| download | linux-88dfb8b43d557ee9b1c1ffd2c8d275dd479a66d4.tar.xz linux-88dfb8b43d557ee9b1c1ffd2c8d275dd479a66d4.zip | |
platform/chrome: cros_ec: Fix leak in sequence_store()
The allocated cros_ec_command message structure is not freed in function
sequence_store(). Make sure that 'msg' is freed in all exit paths.
Detected by Coverity CID 1309667.
Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/chrome/cros_ec_lightbar.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/drivers/platform/chrome/cros_ec_lightbar.c index 144e09df9b84..fc30a991b738 100644 --- a/drivers/platform/chrome/cros_ec_lightbar.c +++ b/drivers/platform/chrome/cros_ec_lightbar.c @@ -352,10 +352,6 @@ static ssize_t sequence_store(struct device *dev, struct device_attribute *attr, struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev, class_dev); - msg = alloc_lightbar_cmd_msg(ec); - if (!msg) - return -ENOMEM; - for (len = 0; len < count; len++) if (!isalnum(buf[len])) break; @@ -370,21 +366,30 @@ static ssize_t sequence_store(struct device *dev, struct device_attribute *attr, return ret; } + msg = alloc_lightbar_cmd_msg(ec); + if (!msg) + return -ENOMEM; + param = (struct ec_params_lightbar *)msg->data; param->cmd = LIGHTBAR_CMD_SEQ; param->seq.num = num; ret = lb_throttle(); if (ret) - return ret; + goto exit; ret = cros_ec_cmd_xfer(ec->ec_dev, msg); if (ret < 0) - return ret; + goto exit; - if (msg->result != EC_RES_SUCCESS) - return -EINVAL; + if (msg->result != EC_RES_SUCCESS) { + ret = -EINVAL; + goto exit; + } - return count; + ret = count; +exit: + kfree(msg); + return ret; } /* Module initialization */ |