IABSD.fr/xenocara/lib/libpciaccess/src/common_map.c

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• Author : matthieu
  Date : 2008-05-24 14:14:00
  Hash : b9c810fd
  Message : Merge libpciaccess 0.10.2, including kettenis@ OpenBSD port.

• lib/libpciaccess/src/common_map.c

• /*
   * (C) Copyright IBM Corporation 2007
   * All Rights Reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * on the rights to use, copy, modify, merge, publish, distribute, sub
   * license, and/or sell copies of the Software, and to permit persons to whom
   * the Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
   * IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  #include <sys/types.h>
  #include <sys/mman.h>
  #include <errno.h>
  
  #include "pciaccess.h"
  #include "pciaccess_private.h"
  
  /**
   * \file common_map.c
   * Platform independent memory map routines.
   *
   * \author Ian Romanick <idr@us.ibm.com>
   */
  
  /**
   * Unmap the specified region using the munmap.
   *
   * \param dev    Device whose memory region is to be mapped.
   * \param map    Memory mapping that is to be undone.
   *
   * \return
   * Zero on success or an \c errno value on failure.
   *
   * \sa pci_device_unmap_range
   */
  _pci_hidden int
  pci_device_generic_unmap_range(struct pci_device *dev,
  			       struct pci_device_mapping *map)
  {
      return (munmap(map->memory, map->size) == -1) ? errno : 0;
  }