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 267b344..836e80d 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -554,6 +554,8 @@
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);