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platform-drivers-x86: intel_mid_thermal: fix memory leak

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The memory for td_info which is allocated in initialize_sensor()
should be properly kfreed in mid_thermal_probe() error patch and
mid_thermal_remove().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Axel Lin 2011-07-06 23:40:51 +08:00 committed by Matthew Garrett
parent 94ee48b928
commit 03f8952cf6
1 changed files with 19 additions and 7 deletions
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26
drivers/platform/x86/intel_mid_thermal.c
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@ -493,20 +493,30 @@ static int mid_thermal_probe(struct platform_device *pdev)
/* Register each sensor with the generic thermal framework*/
for (i = 0; i < MSIC_THERMAL_SENSORS; i++) {
struct thermal_device_info *td_info = initialize_sensor(i);
if (!td_info) {
ret = -ENOMEM;
goto err;
}
pinfo->tzd[i] = thermal_zone_device_register(name[i],
0, initialize_sensor(i), &tzd_ops, 0, 0, 0, 0);
if (IS_ERR(pinfo->tzd[i]))
goto reg_fail;
0, td_info, &tzd_ops, 0, 0, 0, 0);
if (IS_ERR(pinfo->tzd[i])) {
kfree(td_info);
ret = PTR_ERR(pinfo->tzd[i]);
goto err;
}
}
pinfo->pdev = pdev;
platform_set_drvdata(pdev, pinfo);
return 0;
reg_fail:
ret = PTR_ERR(pinfo->tzd[i]);
while (--i >= 0)
err:
while (--i >= 0) {
kfree(pinfo->tzd[i]->devdata);
thermal_zone_device_unregister(pinfo->tzd[i]);
}
configure_adc(0);
kfree(pinfo);
return ret;
@ -524,8 +534,10 @@ static int mid_thermal_remove(struct platform_device *pdev)
int i;
struct platform_info *pinfo = platform_get_drvdata(pdev);
for (i = 0; i < MSIC_THERMAL_SENSORS; i++)
for (i = 0; i < MSIC_THERMAL_SENSORS; i++) {
kfree(pinfo->tzd[i]->devdata);
thermal_zone_device_unregister(pinfo->tzd[i]);
}
kfree(pinfo);
platform_set_drvdata(pdev, NULL);