[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ext2fs/freefs.c b/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ext2fs/freefs.c
new file mode 100644
index 0000000..1ad2d91
--- /dev/null
+++ b/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ext2fs/freefs.c
@@ -0,0 +1,120 @@
+/*
+ * freefs.c --- free an ext2 filesystem
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
+ * %End-Header%
+ */
+
+#include "config.h"
+#include <stdio.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "ext2_fs.h"
+#include "ext2fsP.h"
+
+static void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
+
+void ext2fs_free(ext2_filsys fs)
+{
+ if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS))
+ return;
+ if (fs->image_io != fs->io) {
+ if (fs->image_io)
+ io_channel_close(fs->image_io);
+ }
+ if (fs->io) {
+ io_channel_close(fs->io);
+ }
+ if (fs->device_name)
+ ext2fs_free_mem(&fs->device_name);
+ if (fs->super)
+ ext2fs_free_mem(&fs->super);
+ if (fs->orig_super)
+ ext2fs_free_mem(&fs->orig_super);
+ if (fs->group_desc)
+ ext2fs_free_mem(&fs->group_desc);
+ if (fs->block_map)
+ ext2fs_free_block_bitmap(fs->block_map);
+ if (fs->inode_map)
+ ext2fs_free_inode_bitmap(fs->inode_map);
+ if (fs->image_header)
+ ext2fs_free_mem(&fs->image_header);
+
+ if (fs->badblocks)
+ ext2fs_badblocks_list_free(fs->badblocks);
+ fs->badblocks = 0;
+
+ if (fs->dblist)
+ ext2fs_free_dblist(fs->dblist);
+
+ if (fs->icache)
+ ext2fs_free_inode_cache(fs->icache);
+
+ if (fs->mmp_buf)
+ ext2fs_free_mem(&fs->mmp_buf);
+ if (fs->mmp_cmp)
+ ext2fs_free_mem(&fs->mmp_cmp);
+
+ fs->magic = 0;
+
+ ext2fs_free_mem(&fs);
+}
+
+/*
+ * Free the inode cache structure
+ */
+static void ext2fs_free_inode_cache(struct ext2_inode_cache *icache)
+{
+ if (--icache->refcount)
+ return;
+ if (icache->buffer)
+ ext2fs_free_mem(&icache->buffer);
+ if (icache->cache)
+ ext2fs_free_mem(&icache->cache);
+ icache->buffer_blk = 0;
+ ext2fs_free_mem(&icache);
+}
+
+/*
+ * This procedure frees a badblocks list.
+ */
+void ext2fs_u32_list_free(ext2_u32_list bb)
+{
+ if (bb->magic != EXT2_ET_MAGIC_BADBLOCKS_LIST)
+ return;
+
+ if (bb->list)
+ ext2fs_free_mem(&bb->list);
+ bb->list = 0;
+ ext2fs_free_mem(&bb);
+}
+
+void ext2fs_badblocks_list_free(ext2_badblocks_list bb)
+{
+ ext2fs_u32_list_free((ext2_u32_list) bb);
+}
+
+
+/*
+ * Free a directory block list
+ */
+void ext2fs_free_dblist(ext2_dblist dblist)
+{
+ if (!dblist || (dblist->magic != EXT2_ET_MAGIC_DBLIST))
+ return;
+
+ if (dblist->list)
+ ext2fs_free_mem(&dblist->list);
+ dblist->list = 0;
+ if (dblist->fs && dblist->fs->dblist == dblist)
+ dblist->fs->dblist = 0;
+ dblist->magic = 0;
+ ext2fs_free_mem(&dblist);
+}
+