| commit | 1a9357f443d64aa41e9b0dc414953663a6fcca19 | [log] [tgz] |
|---|---|---|
| author | Jim Rees <rees@umich.edu> | Fri May 17 17:33:00 2013 -0400 |
| committer | J. Bruce Fields <bfields@redhat.com> | Tue May 21 11:02:03 2013 -0400 |
| tree | 590818d77f07ab18197167024779738ec2a01f12 | |
| parent | b6040f9706c4c81cc50b50855ed70840f022bebb [diff] |
nfsd: avoid undefined signed overflow In C, signed integer overflow results in undefined behavior, but unsigned overflow wraps around. So do the subtraction first, then cast to signed. Reported-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: J. Bruce Fields <bfields@redhat.com>