[tip:x86/urgent] x86/sysfs: Fix off-by-one error in loop termination

[tip-bot for Sean Fu]

Commit-ID:  7d7099433d9eaaa5a989a55f1fa354c16a3ad297
Gitweb:     http://git.kernel.org/tip/7d7099433d9eaaa5a989a55f1fa354c16a3ad297
Author:     Sean Fu <fxinrong@xxxxxxxxx>
AuthorDate: Mon, 11 Sep 2017 08:33:21 +0800
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Mon, 25 Sep 2017 09:36:16 +0200

x86/sysfs: Fix off-by-one error in loop termination

An off-by-one error in loop terminantion conditions in
create_setup_data_nodes() will lead to memory leak when
create_setup_data_node() failed.

Signed-off-by: Sean Fu <fxinrong@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1505090001-1157-1-git-send-email-fxinrong@xxxxxxxxx

---
 arch/x86/kernel/ksysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
index 4b0592c..8c1cc08 100644
--- a/arch/x86/kernel/ksysfs.c
+++ b/arch/x86/kernel/ksysfs.c
@@ -299,7 +299,7 @@ static int __init create_setup_data_nodes(struct kobject *parent)
 	return 0;
 
 out_clean_nodes:
-	for (j = i - 1; j > 0; j--)
+	for (j = i - 1; j >= 0; j--)
 		cleanup_setup_data_node(*(kobjp + j));
 	kfree(kobjp);
 out_setup_data_kobj: