diff options
Diffstat (limited to 'fs/fat')
| -rw-r--r-- | fs/fat/fat_write.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c index 3bfc1c4..16f8400 100644 --- a/fs/fat/fat_write.c +++ b/fs/fat/fat_write.c @@ -41,23 +41,19 @@ static void uppercase(char *str, int len) } static int total_sector; -static int disk_write(__u32 startblock, __u32 getsize, __u8 *bufptr) +static int disk_write(__u32 block, __u32 nr_blocks, void *buf) { - if (cur_dev == NULL) + if (!cur_dev || !cur_dev->block_write) return -1; - if (startblock + getsize > total_sector) { + if (cur_part_info.start + block + nr_blocks > + cur_part_info.start + total_sector) { printf("error: overflow occurs\n"); return -1; } - startblock += part_offset; - - if (cur_dev->block_read) { - return cur_dev->block_write(cur_dev->dev, startblock, getsize, - (unsigned long *) bufptr); - } - return -1; + return cur_dev->block_write(cur_dev->dev, + cur_part_info.start + block, nr_blocks, buf); } /* @@ -797,7 +793,7 @@ static int check_overflow(fsdata *mydata, __u32 clustnum, unsigned long size) if (size % mydata->sect_size) sect_num++; - if (startsect + sect_num > total_sector) + if (startsect + sect_num > cur_part_info.start + total_sector) return -1; return 0; @@ -947,7 +943,7 @@ static int do_fat_write(const char *filename, void *buffer, total_sector = bs.total_sect; if (total_sector == 0) - total_sector = part_size; + total_sector = cur_part_info.size; root_cluster = bs.root_cluster; |