1 files changed, 19 insertions, 3 deletions

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index c59f015f386e..a9c3d3e9af39 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -185,6 +185,11 @@ static const struct super_operations debugfs_super_operations = {
         .evict_inode    = debugfs_evict_inode,
 };
 
+static void debugfs_release_dentry(struct dentry *dentry)
+{
+        kfree(dentry->d_fsdata);
+}
+
 static struct vfsmount *debugfs_automount(struct path *path)
 {
         debugfs_automount_t f;
@@ -194,6 +199,7 @@ static struct vfsmount *debugfs_automount(struct path *path)
 
 static const struct dentry_operations debugfs_dops = {
         .d_delete = always_delete_dentry,
+        .d_release = debugfs_release_dentry,
         .d_automount = debugfs_automount,
 };
 
@@ -341,24 +347,34 @@ static struct dentry *__debugfs_create_file(const char *name, umode_t mode,
 {
         struct dentry *dentry;
         struct inode *inode;
+        struct debugfs_fsdata *fsd;
+
+        fsd = kmalloc(sizeof(*fsd), GFP_KERNEL);
+        if (!fsd)
+                return NULL;
 
         if (!(mode & S_IFMT))
                 mode |= S_IFREG;
         BUG_ON(!S_ISREG(mode));
         dentry = start_creating(name, parent);
 
-        if (IS_ERR(dentry))
+        if (IS_ERR(dentry)) {
+                kfree(fsd);
                 return NULL;
+        }
 
         inode = debugfs_get_inode(dentry->d_sb);
-        if (unlikely(!inode))
+        if (unlikely(!inode)) {
+                kfree(fsd);
                 return failed_creating(dentry);
+        }
 
         inode->i_mode = mode;
         inode->i_private = data;
 
         inode->i_fop = proxy_fops;
-        dentry->d_fsdata = (void *)real_fops;
+        fsd->real_fops = real_fops;
+        dentry->d_fsdata = fsd;
 
         d_instantiate(dentry, inode);
         fsnotify_create(d_inode(dentry->d_parent), dentry);