Messages in this thread Patch in this message | | | From | wu000273@umn ... | Subject | [PATCH] cpuidle: Fix several reference count leaks. | Date | Thu, 28 May 2020 13:20:46 -0500 |
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From: Qiushi Wu <wu000273@umn.edu>
kobject_init_and_add() takes reference even when it fails. If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Previous commit "b8eb718348b8" fixed a similar problem.
Signed-off-by: Qiushi Wu <wu000273@umn.edu> --- drivers/cpuidle/sysfs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index cdeedbf02646..55107565b319 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -515,7 +515,7 @@ static int cpuidle_add_state_sysfs(struct cpuidle_device *device) ret = kobject_init_and_add(&kobj->kobj, &ktype_state_cpuidle, &kdev->kobj, "state%d", i); if (ret) { - kfree(kobj); + kobject_put(&kobj->kobj); goto error_state; } cpuidle_add_s2idle_attr_group(kobj); @@ -646,7 +646,7 @@ static int cpuidle_add_driver_sysfs(struct cpuidle_device *dev) ret = kobject_init_and_add(&kdrv->kobj, &ktype_driver_cpuidle, &kdev->kobj, "driver"); if (ret) { - kfree(kdrv); + kobject_put(&kdrv->kobj); return ret; } @@ -740,7 +740,7 @@ int cpuidle_add_sysfs(struct cpuidle_device *dev) error = kobject_init_and_add(&kdev->kobj, &ktype_cpuidle, &cpu_dev->kobj, "cpuidle"); if (error) { - kfree(kdev); + kobject_put(&kdev->kobj); return error; } -- 2.17.1
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