Function tmpfs_unlink

fs/tmpfs/fs_tmpfs.c:2351–2454

 ****************************************************************************/

static int tmpfs_unlink(FAR struct inode *mountpt, FAR const char *relpath)
{
  FAR struct tmpfs_s *fs;
  FAR struct tmpfs_directory_s *tdo;
  FAR struct tmpfs_file_s *tfo = NULL;
  FAR const char *name;
  int ret;

  finfo("mountpt: %p relpath: %s\n", mountpt, relpath);
  DEBUGASSERT(mountpt != NULL && relpath != NULL);

  /* Get the file system structure from the inode reference. */

  fs = mountpt->i_private;
  DEBUGASSERT(fs != NULL && fs->tfs_root.tde_object != NULL);

  /* Get exclusive access to the file system */

  ret = tmpfs_lock(fs);
  if (ret < 0)
    {
      return ret;
    }

  /* Find the file object and parent directory associated with this relative
   * path.  If successful, tmpfs_find_file will lock both the file object
   * and the parent directory and take one reference count on each.
   */

  ret = tmpfs_find_file(fs, relpath, &tfo, &tdo);
  if (ret < 0)
    {
      goto errout_with_lock;
    }

  DEBUGASSERT(tfo != NULL);

  /* Get the file name from the relative path */

  name = strrchr(relpath, '/');
  if (name != NULL)
    {
      /* Skip over the file '/' character */

      name++;
    }
  else
    {
      /* The name must lie in the root directory */

      name = relpath;
    }

  /* Remove the file from parent directory */

  ret = tmpfs_remove_dirent(tdo, name);
  if (ret < 0)
    {