95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
/****************************************************************************
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* fs/driver/fs_closeblockdriver.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/fs/fs.h>
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#include "inode/inode.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: close_blockdriver
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*
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* Description:
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* Call the close method and release the inode
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*
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* Input Parameters:
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* inode - reference to the inode of a block driver opened by
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* open_blockdriver
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*
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* Returned Value:
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* Returns zero on success or a negated errno on failure:
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*
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* EINVAL - inode is NULL
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* ENOTBLK - The inode is not a block driver
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*
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****************************************************************************/
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int close_blockdriver(FAR struct inode *inode)
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{
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int ret = 0; /* Assume success */
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/* Sanity checks */
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#ifdef CONFIG_DEBUG_FEATURES
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if (!inode || !inode->u.i_bops)
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{
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ret = -EINVAL;
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goto errout;
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}
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#endif
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/* Verify that the inode is a block driver. */
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if (!INODE_IS_BLOCK(inode))
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{
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ferr("ERROR: inode is not a block driver\n");
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ret = -ENOTBLK;
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goto errout;
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}
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/* Close the block driver. Not that no mutually exclusive access
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* to the driver is enforced here. That must be done in the driver
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* if needed.
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*/
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if (inode->u.i_bops->close)
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{
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ret = inode->u.i_bops->close(inode);
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}
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/* Then release the reference on the inode */
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inode_release(inode);
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errout:
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return ret;
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}
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