From: yan <clouds.yan@gmail.com>
To: greg <gregkh@linuxfoundation.org>
Cc: kernel <linux-kernel@vger.kernel.org>, message <message.get@gmail.com>
Subject: [PATCH 1/4][Trivial] lib/kobject.c: Check parameter in kobject_get_path
Date: Sat, 21 Apr 2012 17:25:42 +0800 [thread overview]
Message-ID: <1335000350.2188.5.camel@yan> (raw)
kobject_get_path is exported, it passes its parameter kobj to
get_kobj_path_length and fill_kobj_path which are both static
and called only once here. So check this parameter.
Signed-off-by: Yan Hong <clouds.yan@gmail.com>
---
lib/kobject.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/lib/kobject.c b/lib/kobject.c
index 38fcc60..56c8cb3 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -104,6 +104,9 @@ char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask)
char *path;
int len;
+ if (!kobj)
+ return NULL;
+
len = get_kobj_path_length(kobj);
if (len == 0)
return NULL;
--
1.7.5.1
next reply other threads:[~2012-04-21 9:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-21 9:25 yan [this message]
2012-04-23 20:38 ` [PATCH 1/4][Trivial] lib/kobject.c: Check parameter in kobject_get_path greg
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