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authorHerbert Xu <herbert@gondor.apana.org.au>2015-01-24 08:02:40 +1100
committerDavid S. Miller <davem@davemloft.net>2015-01-27 00:02:41 -0800
commit86f3cddbc3037882414c7308973530167906b7e9 (patch)
treea763a5c75a0f5d53e4247422039c9b685226b158
parent7d63585bf0a6c99382f97a5af71c5b5547fb58a4 (diff)
downloadop-kernel-dev-86f3cddbc3037882414c7308973530167906b7e9.zip
op-kernel-dev-86f3cddbc3037882414c7308973530167906b7e9.tar.gz
udp_diag: Fix socket skipping within chain
While working on rhashtable walking I noticed that the UDP diag dumping code is buggy. In particular, the socket skipping within a chain never happens, even though we record the number of sockets that should be skipped. As this code was supposedly copied from TCP, this patch does what TCP does and resets num before we walk a chain. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/udp_diag.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/udp_diag.c b/net/ipv4/udp_diag.c
index 7927db0..4a000f1 100644
--- a/net/ipv4/udp_diag.c
+++ b/net/ipv4/udp_diag.c
@@ -99,11 +99,13 @@ static void udp_dump(struct udp_table *table, struct sk_buff *skb, struct netlin
s_slot = cb->args[0];
num = s_num = cb->args[1];
- for (slot = s_slot; slot <= table->mask; num = s_num = 0, slot++) {
+ for (slot = s_slot; slot <= table->mask; s_num = 0, slot++) {
struct sock *sk;
struct hlist_nulls_node *node;
struct udp_hslot *hslot = &table->hash[slot];
+ num = 0;
+
if (hlist_nulls_empty(&hslot->head))
continue;
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