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pkg/fatfs: ensure max sector size is not exceeded

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This commit is contained in:
Benjamin Valentin 2022-02-09 12:10:17 +01:00
parent 1eebbabe83
commit 8f47684343
1 changed files with 12 additions and 2 deletions
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14
pkg/fatfs/fatfs_diskio/mtd/mtd_diskio.c
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@ -71,8 +71,18 @@ DSTATUS disk_initialize(BYTE pdrv)
return STA_NOINIT;
}
return (mtd_init(fatfs_mtd_devs[pdrv]) == 0) ? FATFS_DISKIO_DSTASTUS_OK
: STA_NOINIT;
if (mtd_init(fatfs_mtd_devs[pdrv])) {
return STA_NOINIT;
}
uint32_t sector_size = fatfs_mtd_devs[pdrv]->page_size
* fatfs_mtd_devs[pdrv]->pages_per_sector;
if (sector_size > FF_MAX_SS) {
assert(0);
return STA_NOINIT;
}
return FATFS_DISKIO_DSTASTUS_OK;
}
/**