d67e9f0ad9
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2341 42af7a65-404d-4744-a932-0658087f49c3
111 lines
3.6 KiB
C
111 lines
3.6 KiB
C
/****************************************************************************
|
|
* fs/fs_closeblockdriver.c
|
|
*
|
|
* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in pathname and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of pathname 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 <nuttx/config.h>
|
|
|
|
#include <debug.h>
|
|
#include <errno.h>
|
|
#include <nuttx/fs.h>
|
|
|
|
#include "fs_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: close_blockdriver
|
|
*
|
|
* Description:
|
|
* Call the close method and release the inode
|
|
*
|
|
* Inputs:
|
|
* inode - reference to the inode of a block driver opened by open_blockdriver
|
|
*
|
|
* Return:
|
|
* Returns zero on success or a negated errno on failure:
|
|
*
|
|
* EINVAL - inode is NULL
|
|
* ENOTBLK - The inode is not a block driver
|
|
*
|
|
****************************************************************************/
|
|
|
|
int close_blockdriver(FAR struct inode *inode)
|
|
{
|
|
int ret = 0; /* Assume success */
|
|
|
|
/* Sanity checks */
|
|
#ifdef CONFIG_DEBUG
|
|
if (!inode || !inode->u.i_bops)
|
|
{
|
|
ret = -EINVAL;
|
|
goto errout;
|
|
}
|
|
#endif
|
|
|
|
/* Verify that the inode is a block driver. */
|
|
|
|
if (!INODE_IS_BLOCK(inode))
|
|
{
|
|
fdbg("inode is not a block driver\n");
|
|
ret = -ENOTBLK;
|
|
goto errout;
|
|
}
|
|
|
|
/* Close the block driver. Not that no mutually exclusive access
|
|
* to the driver is enforced here. That must be done in the driver
|
|
* if needed.
|
|
*/
|
|
|
|
if (inode->u.i_bops->close)
|
|
{
|
|
ret = inode->u.i_bops->close(inode);
|
|
}
|
|
|
|
/* Then release the reference on the inode */
|
|
|
|
inode_release(inode);
|
|
errout:
|
|
return ret;
|
|
}
|