diff options
Diffstat (limited to 'fs/fat/fat_write.c')
| -rw-r--r-- | fs/fat/fat_write.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c index 98b88add83..adb6940dff 100644 --- a/fs/fat/fat_write.c +++ b/fs/fat/fat_write.c @@ -30,6 +30,8 @@ static void uppercase(char *str, int len) static int total_sector; static int disk_write(__u32 block, __u32 nr_blocks, void *buf) { + ulong ret; + if (!cur_dev || !cur_dev->block_write) return -1; @@ -39,8 +41,13 @@ static int disk_write(__u32 block, __u32 nr_blocks, void *buf) return -1; } - return cur_dev->block_write(cur_dev->dev, - cur_part_info.start + block, nr_blocks, buf); + ret = cur_dev->block_write(cur_dev->dev, + cur_part_info.start + block, + nr_blocks, buf); + if (nr_blocks && ret == 0) + return -1; + + return ret; } /* |