1 files changed, 5 insertions, 7 deletions

diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 00bf8fcb245f..d29b7f6df862 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -22,6 +22,7 @@
 #include <linux/magic.h>
 #include <linux/dcache.h>
 #include <linux/uaccess.h>
+#include <linux/slab.h>
 
 #include "autofs_i.h"
 
@@ -544,10 +545,9 @@ static int autofs_dev_ioctl_ismountpoint(struct file *fp,
                         goto out;
                 devid = new_encode_dev(path.mnt->mnt_sb->s_dev);
                 err = 0;
-                if (path.dentry->d_inode &&
-                    path.mnt->mnt_root == path.dentry) {
+                if (path.mnt->mnt_root == path.dentry) {
                         err = 1;
-                        magic = path.dentry->d_inode->i_sb->s_magic;
+                        magic = path.mnt->mnt_sb->s_magic;
                 }
         } else {
                 dev_t dev = sbi->sb->s_dev;
@@ -560,10 +560,8 @@ static int autofs_dev_ioctl_ismountpoint(struct file *fp,
 
                 err = have_submounts(path.dentry);
 
-                if (path.mnt->mnt_mountpoint != path.mnt->mnt_root) {
-                        if (follow_down(&path))
-                                magic = path.mnt->mnt_sb->s_magic;
-                }
+                if (follow_down(&path))
+                        magic = path.mnt->mnt_sb->s_magic;
         }
 
         param->ismountpoint.out.devid = devid;