niklascfw/hekate
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

bdk: ff: check for cltbl malloc success

Browse Source
This commit is contained in:
CTCaer
2025-01-24 15:18:35 +02:00
parent 9ba94bae2d
commit 6c958f16b8
1 changed files with 8 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
bdk/libs/fatfs/ff.c
View File

@@ -4698,13 +4698,20 @@ FRESULT f_lseek (
DWORD *f_expand_cltbl ( DWORD *f_expand_cltbl (
FIL* fp, /* Pointer to the file object */ FIL* fp, /* Pointer to the file object */
UINT tblsz, /* Size of table */ UINT tblsz, /* Size of table (2 DWORDs + 2 DWORDs per fragment) */
FSIZE_t ofs /* File pointer from top of file */ FSIZE_t ofs /* File pointer from top of file */
) )
{ {
/*
* Cluster table structure:
* Size (DWORD)
* Padding (DWORD)
* (Cluster Offset (DWORD) + Sequential clusters (DWORD)) * Fragments
*/
if (fp->flag & FA_WRITE) f_lseek(fp, ofs); /* Expand file if write is enabled */ if (fp->flag & FA_WRITE) f_lseek(fp, ofs); /* Expand file if write is enabled */
if (!fp->cltbl) { /* Allocate memory for cluster link table */ if (!fp->cltbl) { /* Allocate memory for cluster link table */
fp->cltbl = (DWORD *)ff_memalloc(tblsz); fp->cltbl = (DWORD *)ff_memalloc(tblsz);
if (!fp->cltbl) return (void *)0;
fp->cltbl[0] = tblsz; fp->cltbl[0] = tblsz;
} }
if (f_lseek(fp, CREATE_LINKMAP)) { /* Create cluster link table */ if (f_lseek(fp, CREATE_LINKMAP)) { /* Create cluster link table */