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[PATCH] Bug in FAT32 filesystem
- From: =?big5?q?=B7=A8=B6=AE=B6W?= <vlsi235 at yahoo dot com dot tw>
- To: ecos-patches at sourceware dot org
- Date: Wed, 31 Jan 2007 13:23:55 +0800 (CST)
- Subject: [PATCH] Bug in FAT32 filesystem
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--- ./ecos/packages/fs/fat/current/src/fatfs_supp.c
2005-08-04 04:40:48.000000000 +0800
+++ fatfs_supp.c 2007-01-31 13:21:06.000000000 +0800
@@ -2166,7 +2166,10 @@ fatfs_delete_file(fatfs_disk_t
*disk, fa
}
// Free file clusters
- free_cluster_chain(disk, raw_dentry.cluster);
+ //free_cluster_chain(disk, raw_dentry.cluster);
+ //Fix bug in FAT32.
+ //In FAT32, the entry's start cluster is 32bit
and it's composed of cluster_HI and cluster
+ free_cluster_chain(disk, raw_dentry.cluster |
raw_dentry.cluster_HI << 16);
raw_dentry_set_deleted(disk, &raw_dentry);
err = write_raw_dentry(disk, &file->disk_pos,
&raw_dentry);
return err;
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