text: /****************************************************************************
   *
   * Copyright 2016 Samsung Electronics All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied. See the License for the specific
   * language governing permissions and limitations under the License.
   *
   ****************************************************************************/
  /************************************************************************
   * kernel/group/group_free.c
   *
   *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
   *   Author: Gregory Nutt <gnutt@nuttx.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   * 3. Neither the name NuttX nor the names of its contributors may be
   *    used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
   * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   ************************************************************************/
  
  /************************************************************************
   * Included Files
   ************************************************************************/
  
  #include <sys/types.h>
  
  #include <assert.h>
  
  #include <tinyara/sched.h>
  #include <tinyara/kmalloc.h>
  
  #include "sched/sched.h"
  #include "group/group.h"
  
  #if (defined(CONFIG_BUILD_PROTECTED) || defined(CONFIG_BUILD_KERNEL)) && \
  	 defined(CONFIG_MM_KERNEL_HEAP)
  
  /************************************************************************
   * Pre-processor Definitions
   ************************************************************************/
  
  /************************************************************************
   * Private Type Declarations
   ************************************************************************/
  
  /************************************************************************
   * Global Variables
   ************************************************************************/
  
  /************************************************************************
   * Private Variables
   ************************************************************************/
  
  /************************************************************************
   * Private Function Prototypes
   ************************************************************************/
  
  /************************************************************************
   * Public Functions
   ************************************************************************/
  
  /************************************************************************
   * Name: group_free
   *
   * Description:
   *   Free memory appropriate previously allocated via group_malloc() using
   *   the appropriate memory manager.
   *
   ************************************************************************/
  
  void group_free(FAR struct task_group_s *group, FAR void *mem)
  {
  	/* A NULL group pointer means the current group */
  
  	if (!group) {
  		FAR struct tcb_s *tcb = this_task();
  		DEBUGASSERT(tcb && tcb->group);
  		group = tcb->group;
  	}
  
  	/* Check the group is privileged */
  
  	if (kmm_heapmember(mem)) {
  		/* It is a privileged group... use the kernel mode memory allocator */
  
  		return kmm_free(mem);
  	} else {
  		/* This is an unprivileged group... use the user mode memory
  		 * allocator.
  		 */
  
  		return kumm_free(mem);
  	}
  }
  
  #endif							/* CONFIG_BUILD_PROTECTED || CONFIG_BUILD_KERNEL) && CONFIG_MM_KERNEL_HEAP */
  