Commit e5f5a66c authored by Anel Orazgaliyeva's avatar Anel Orazgaliyeva Committed by Rafael J. Wysocki

cpuidle: Fix kobject memory leaks in error paths

Commit c343bf1b ("cpuidle: Fix three reference count leaks")
fixes the cleanup of kobjects; however, it removes kfree() calls
altogether, leading to memory leaks.

Fix those and also defer the initialization of dev->kobj_dev until
after the error check, so that we do not end up with a dangling
pointer.

Fixes: c343bf1b ("cpuidle: Fix three reference count leaks")
Signed-off-by: default avatarAnel Orazgaliyeva <anelkz@amazon.de>
Suggested-by: default avatarAman Priyadarshi <apeureka@amazon.de>
[ rjw: Subject edits ]
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent c227233a
......@@ -488,6 +488,7 @@ static int cpuidle_add_state_sysfs(struct cpuidle_device *device)
&kdev->kobj, "state%d", i);
if (ret) {
kobject_put(&kobj->kobj);
kfree(kobj);
goto error_state;
}
cpuidle_add_s2idle_attr_group(kobj);
......@@ -619,6 +620,7 @@ static int cpuidle_add_driver_sysfs(struct cpuidle_device *dev)
&kdev->kobj, "driver");
if (ret) {
kobject_put(&kdrv->kobj);
kfree(kdrv);
return ret;
}
......@@ -705,7 +707,6 @@ int cpuidle_add_sysfs(struct cpuidle_device *dev)
if (!kdev)
return -ENOMEM;
kdev->dev = dev;
dev->kobj_dev = kdev;
init_completion(&kdev->kobj_unregister);
......@@ -713,9 +714,11 @@ int cpuidle_add_sysfs(struct cpuidle_device *dev)
"cpuidle");
if (error) {
kobject_put(&kdev->kobj);
kfree(kdev);
return error;
}
dev->kobj_dev = kdev;
kobject_uevent(&kdev->kobj, KOBJ_ADD);
return 0;
......
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