linux-kernel - [PATCH] kobject: name reference should not be lost when lack of memory error happens

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Message-Id: <1286447573-12579-1-git-send-email-roman.tereshonkov@nokia.com>
Date:	Thu,  7 Oct 2010 13:32:53 +0300
From:	Roman Tereshonkov <roman.tereshonkov@...ia.com>
To:	linux-kernel@...r.kernel.org
Cc:	gregkh@...e.de, Roman Tereshonkov <roman.tereshonkov@...ia.com>
Subject: [PATCH] kobject: name reference should not be lost when lack of memory error happens

If lack of memory error happens we must restore the old kobject name reference

Signed-off-by: Roman Tereshonkov <roman.tereshonkov@...ia.com>
---
 lib/kobject.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/lib/kobject.c b/lib/kobject.c
index f07c572..c5cb117 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -222,8 +222,10 @@ int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
 		return 0;
 
 	kobj->name = kvasprintf(GFP_KERNEL, fmt, vargs);
-	if (!kobj->name)
+	if (!kobj->name) {
+		kobj->name = old_name;
 		return -ENOMEM;
+	}
 
 	/* ewww... some of these buggers have '/' in the name ... */
 	while ((s = strchr(kobj->name, '/')))
-- 
1.7.0.4

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