diff options
Diffstat (limited to 'board/xilinx/common')
| -rw-r--r-- | board/xilinx/common/fru_ops.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/board/xilinx/common/fru_ops.c b/board/xilinx/common/fru_ops.c index a0a1441a8e..058e750c44 100644 --- a/board/xilinx/common/fru_ops.c +++ b/board/xilinx/common/fru_ops.c @@ -39,12 +39,20 @@ static int fru_check_language(u8 code) u8 fru_checksum(u8 *addr, u8 len) { u8 checksum = 0; + u8 cnt = len; while (len--) { + if (*addr == 0) + cnt--; + checksum += *addr; addr++; } + /* If all data bytes are 0's return error */ + if (!cnt) + return EINVAL; + return checksum; } |