forked from Imagelibrary/rtems
47a471a7dd
Avoid uninitialized ramdisk::free_at_delete_request. The error was visible in sporadic libtests/block01 failures.
74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
/**
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* @file
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*
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* @ingroup rtems_ramdisk
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*
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* @brief RAM disk block device implementation.
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*/
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/*
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* Copyright (c) 2009-2012 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <rtems.h>
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#include <rtems/ramdisk.h>
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ramdisk *ramdisk_allocate(
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void *area_begin,
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uint32_t media_block_size,
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rtems_blkdev_bnum media_block_count,
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bool trace
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)
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{
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struct ramdisk *rd = calloc(1, sizeof(*rd));
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if (rd == NULL) {
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return NULL;
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}
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if (area_begin == NULL) {
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area_begin = calloc(media_block_count, media_block_size);
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if (area_begin == NULL) {
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free(rd);
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return NULL;
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}
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rd->malloced = true;
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} else {
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rd->malloced = false;
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}
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rd->block_size = media_block_size;
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rd->block_num = media_block_count;
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rd->area = area_begin;
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rd->trace = trace;
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rd->initialized = true;
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return rd;
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}
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void ramdisk_free(ramdisk *rd)
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{
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if (rd != NULL) {
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if (rd->malloced) {
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free(rd->area);
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}
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free(rd);
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}
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}
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