Function dfs_mnt_remove

components/dfs/dfs_v2/src/dfs_mnt.c:150–171

* @brief Remove a mount point from the mount tree. * * This function attempts to remove a specified mount point from the mount tree. * It can only remove a mount point if it has no child mount points. If the mount point * has children, it logs a warning message instead of performing the removal. * * @param[in] mnt Pointer to the dfs_mnt structure representing the mount point to be removed.

 *         Returns -RT_ERROR if the mount point has child mount points and cannot be removed.
 */
int dfs_mnt_remove(struct dfs_mnt* mnt)
{
    int ret = -RT_ERROR;

    if (rt_list_isempty(&mnt->child))
    {
        rt_list_remove(&mnt->sibling);
        if (mnt->parent)
        {
            /* parent unref parent */
            rt_atomic_sub(&(mnt->parent->ref_count), 1);
        }

        ret = RT_EOK;
    }
    else
    {
        LOG_W("remove a mnt point:%s with child.", mnt->fullpath);
    }

    return ret;
}

/**
 * @brief Recursively search for a mount point associated with a specific device ID in the mount tree.