sysfs: Create mountpoints with sysfs_create_mount_point

commit f9bb48825a6b5d02f4cabcc78967c75db903dcdc upstream.

This allows for better documentation in the code and
it allows for a simpler and fully correct version of
fs_fully_visible to be written.

The mount points converted and their filesystems are:
/sys/hypervisor/s390/       s390_hypfs
/sys/kernel/config/         configfs
/sys/kernel/debug/          debugfs
/sys/firmware/efi/efivars/  efivarfs
/sys/fs/fuse/connections/   fusectl
/sys/fs/pstore/             pstore
/sys/kernel/tracing/        tracefs
/sys/fs/cgroup/             cgroup
/sys/kernel/security/       securityfs
/sys/fs/selinux/            selinuxfs
/sys/fs/smackfs/            smackfs

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 3061bb8629dc..e14363d12690 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -65,7 +65,6 @@ static int __init parse_efi_cmdline(char *str)
 early_param("efi", parse_efi_cmdline);
 
 static struct kobject *efi_kobj;
-static struct kobject *efivars_kobj;
 
 /*
  * Let's not leave out systab information that snuck into
@@ -212,10 +211,9 @@ static int __init efisubsys_init(void)
                 goto err_remove_group;
 
         /* and the standard mountpoint for efivarfs */
-        efivars_kobj = kobject_create_and_add("efivars", efi_kobj);
-        if (!efivars_kobj) {
+        error = sysfs_create_mount_point(efi_kobj, "efivars");
+        if (error) {
                 pr_err("efivars: Subsystem registration failed.\n");
-                error = -ENOMEM;
                 goto err_remove_group;
         }