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Subject[PATCH] kobject: kzfree object in _release function
Date
From: Ming Lei <tom.leiming@gmail.com>

It helps to troubleshoot the __buggy__ case, in which
unreferenced objects are still accessed, using kzfree
to free objects safely in _release function.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
---
lib/kobject.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/kobject.c b/lib/kobject.c
index a6dec32..cb5a562 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -597,7 +597,7 @@ void kobject_put(struct kobject *kobj)
static void dynamic_kobj_release(struct kobject *kobj)
{
pr_debug("kobject: (%p): %s\n", kobj, __func__);
- kfree(kobj);
+ kzfree(kobj);
}

static struct kobj_type dynamic_kobj_ktype = {
@@ -762,7 +762,7 @@ static void kset_release(struct kobject *kobj)
struct kset *kset = container_of(kobj, struct kset, kobj);
pr_debug("kobject: '%s' (%p): %s\n",
kobject_name(kobj), kobj, __func__);
- kfree(kset);
+ kzfree(kset);
}

static struct kobj_type kset_ktype = {
--
1.6.0.GIT


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