diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
index 6ae3aa0..99a6f82 100644
--- a/grsecurity/gracl.c
+++ b/grsecurity/gracl.c
@@ -100,9 +100,13 @@ static inline dev_t __get_dev(const struct dentry *dentry)
 #if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
 	if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
 		return BTRFS_I(dentry->d_inode)->root->anon_dev;
-	else
 #endif
-		return dentry->d_sb->s_dev;
+	if (dentry->d_sb == NULL) {
+		printk(KERN_ALERT "dentry->d_name.name=%.16s dentry->d_inode = %p, dentry->d_inode->i_sb = %p\n",
+			dentry->d_name.name, dentry->d_inode, dentry->d_inode->i_sb);
+		return dentry->d_inode->i_sb->s_dev;
+	}
+	return dentry->d_sb->s_dev;
 }
 
 dev_t gr_get_dev_from_dentry(struct dentry *dentry)