diff options
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index cb9fc58efb2f..35d2b0e9e10b 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -147,13 +147,14 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum, write_lock_bh(&udp_hash_lock); if (!snum) { - int i, low, high; + int i, low, high, remaining; unsigned rover, best, best_size_so_far; inet_get_local_port_range(&low, &high); + remaining = (high - low) + 1; best_size_so_far = UINT_MAX; - best = rover = net_random() % (high - low) + low; + best = rover = net_random() % remaining + low; /* 1st pass: look for empty (or shortest) hash chain */ for (i = 0; i < UDP_HTABLE_SIZE; i++) { |