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

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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>
This commit is contained in:
Zhaolei 2008-10-17 19:25:03 +08:00 committed by Paul Mundt
parent a3e0270663
commit 9986b311ef
1 changed files with 2 additions and 0 deletions
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2
arch/sh/kernel/setup.c
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@ -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);