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Fix a critical bug with exFAT FatFs + a list bug

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Nintendo you hear? Fix your driver already.
(for us never caused any problem, because we always sync fs dir changes to medium.)
This commit is contained in:
Kostas Missos
2018-08-22 03:38:25 +03:00
parent c5a6ad823e
commit da5a1a9641
3 changed files with 8 additions and 11 deletions
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9
bootloader/libs/fatfs/ff.c
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@@ -4943,6 +4943,7 @@ FRESULT f_mkdir (
{
FRESULT res;
DIR dj;
FFOBJID sobj;
FATFS *fs;
BYTE *dir;
DWORD dcl, pcl, tm;
@@ -4960,8 +4961,8 @@ FRESULT f_mkdir (
res = FR_INVALID_NAME;
}
if (res == FR_NO_FILE) { /* Can create a new directory */
dcl = create_chain(&dj.obj, 0); /* Allocate a cluster for the new directory table */
dj.obj.objsize = (DWORD)fs->csize * SS(fs);
sobj.fs = fs; /* New object id to create a new chain */
dcl = create_chain(&sobj, 0); /* Allocate a cluster for the new directory */
res = FR_OK;
if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
if (dcl == 1) res = FR_INT_ERR;
@@ -4991,8 +4992,8 @@ FRESULT f_mkdir (
if (fs->fs_type == FS_EXFAT) { /* Initialize directory entry block */
st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Created time */
st_dword(fs->dirbuf + XDIR_FstClus, dcl); /* Table start cluster */
st_dword(fs->dirbuf + XDIR_FileSize, (DWORD)dj.obj.objsize); /* File size needs to be valid */
st_dword(fs->dirbuf + XDIR_ValidFileSize, (DWORD)dj.obj.objsize);
st_dword(fs->dirbuf + XDIR_FileSize, (DWORD)fs->csize * SS(fs)); /* File size needs to be valid */
st_dword(fs->dirbuf + XDIR_ValidFileSize, (DWORD)fs->csize * SS(fs));
fs->dirbuf[XDIR_GenFlags] = 3; /* Initialize the object flag */
fs->dirbuf[XDIR_Attr] = AM_DIR; /* Attribute */
res = store_xdir(&dj);