From: Zhaolei <zhaolei@cn.fujitsu.com>
Date: Fri, 17 Oct 2008 11:25:03 +0000 (+0800)
Subject: Fix debugfs_create_dir's error checking method for arch/sh/kernel/
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9986b311efdc9727a5a48f03c3dac3d536fbaa74;p=linux-beck.git

Fix debugfs_create_dir's error checking method for arch/sh/kernel/

debugfs_create_dir() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 267b344099c0..836e80d5cb9f 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -554,6 +554,8 @@ struct dentry *sh_debugfs_root;
 static int __init sh_debugfs_init(void)
 {
 	sh_debugfs_root = debugfs_create_dir("sh", NULL);
+	if (!sh_debugfs_root)
+		return -ENOMEM;
 	if (IS_ERR(sh_debugfs_root))
 		return PTR_ERR(sh_debugfs_root);