diff options
| author | Ley Foon Tan <[email protected]> | 2020-08-25 10:26:37 +0800 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2020-09-30 16:48:18 -0400 |
| commit | f6a158b996b3abee4e6315b29a488398cb3946df (patch) | |
| tree | 53db6ad1efad50666b6e94ce4b4ec9516be0e3e0 | |
| parent | ae0bdf09ca9737d5db9453966cf4705bdd420d31 (diff) | |
net: tftp: Fix load_block offset calculation
When load the last block, the "len" might not be a block size. This cause
loading the incorrect last block data.
The fix change "len" to tftp_block_size and minus one tftp_block_size
for offset calculation.
Use same offset calculation formula as in store_block().
Signed-off-by: Ley Foon Tan <[email protected]>
Reviewed-By: Ramon Fried <[email protected]>
| -rw-r--r-- | net/tftp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/tftp.c b/net/tftp.c index 1c003871c15..6fdb1a821a8 100644 --- a/net/tftp.c +++ b/net/tftp.c @@ -234,7 +234,8 @@ static void new_transfer(void) static int load_block(unsigned block, uchar *dst, unsigned len) { /* We may want to get the final block from the previous set */ - ulong offset = ((int)block - 1) * len + tftp_block_wrap_offset; + ulong offset = block * tftp_block_size + tftp_block_wrap_offset - + tftp_block_size; ulong tosend = len; tosend = min(net_boot_file_size - offset, tosend); |