a4d6af8343
Resolution of Issue 619 will require multiple steps, this part of the first step in that resolution: Every call to nxsem_wait_uninterruptible() must handle the return value from nxsem_wait_uninterruptible properly. This commit is only for those files under fs/inode. Utility functions under fs/incode were modified so the changes do extend to other fs/ sub-directories as well.
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/****************************************************************************
|
|
* fs/inode/fs_inodefind.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
|
|
#include <nuttx/fs/fs.h>
|
|
|
|
#include "inode/inode.h"
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: inode_find
|
|
*
|
|
* Description:
|
|
* This is called from the open() logic to get a reference to the inode
|
|
* associated with a path. This is accomplished by calling inode_search().
|
|
* inode_find() is a simple wrapper around inode_search(). The primary
|
|
* difference between inode_find() and inode_search is that inode_find()
|
|
* will lock the inode tree and increment the reference count on the inode.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int inode_find(FAR struct inode_search_s *desc)
|
|
{
|
|
int ret;
|
|
|
|
/* Find the node matching the path. If found, increment the count of
|
|
* references on the node.
|
|
*/
|
|
|
|
ret = inode_semtake();
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
ret = inode_search(desc);
|
|
if (ret >= 0)
|
|
{
|
|
/* Found it */
|
|
|
|
FAR struct inode *node = desc->node;
|
|
DEBUGASSERT(node != NULL);
|
|
|
|
/* Increment the reference count on the inode */
|
|
|
|
node->i_crefs++;
|
|
}
|
|
|
|
inode_semgive();
|
|
return ret;
|
|
}
|