linux-kernel - [PATCH] kobject: kzfree object in

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Message-Id: <1239466586-29410-1-git-send-email-tom.leiming@gmail.com>
Date:	Sun, 12 Apr 2009 00:16:26 +0800
From:	tom.leiming@...il.com
To:	greg@...ah.com
Cc:	linux-kernel@...r.kernel.org, Ming Lei <tom.leiming@...il.com>
Subject: [PATCH] kobject: kzfree object in _release function

From: Ming Lei <tom.leiming@...il.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@...il.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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