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R0.13c patch 1

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December 22, 2018

f_mkfs() function can fail with FR_MKFS_ABORTED if the FAT type is exFAT and the volume is located
not at the first partition.
This commit is contained in:
Christopher Williams
2019-01-09 17:15:56 -07:00
parent f2bf030bfd
commit 35fb314106
1 changed files with 1 additions and 1 deletions
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source/ff.c
+1 -1
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@@ -5642,7 +5642,7 @@ FRESULT f_mkfs (
b_fat = b_vol + 32; /* FAT start at offset 32 */
sz_fat = ((sz_vol / au + 2) * 4 + ss - 1) / ss; /* Number of FAT sectors */
b_data = (b_fat + sz_fat + sz_blk - 1) & ~(sz_blk - 1); /* Align data area to the erase block boundary */
if (b_data >= sz_vol / 2) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */
if (b_data - b_vol >= sz_vol / 2) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */
n_clst = (sz_vol - (b_data - b_vol)) / au; /* Number of clusters */
if (n_clst <16) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too few clusters? */
if (n_clst > MAX_EXFAT) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters? */