Messages in this thread | | | Date | Thu, 23 Jul 2015 16:19:19 +0100 | From | Lee Jones <> | Subject | Re: [PATCH] mfd: cros_ec: Fix possible leak in led_rgb_store() |
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On Sun, 19 Jul 2015, Christian Engelmayer wrote:
> 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> > --- > Compile tested only. Applies against linux-next. > --- > drivers/platform/chrome/cros_ec_lightbar.c | 8 +++----- > 1 file changed, 3 insertions(+), 5 deletions(-)
This is not an MFD patch.
> diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/drivers/platform/chrome/cros_ec_lightbar.c > index 144e09df9b84..4e598c11e8a4 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;
-- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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