From efacfbcb6c88677809f44a574fbcd9824835dccb Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sat, 12 Nov 2005 12:12:05 -0800
Subject: [PATCH] [IPV6]: Fix rtnetlink dump infinite loop
The recent change to netlink dump "done" callback handling broke IPv6
which played dirty tricks with the "done" callback. This causes an
infinite loop during a dump.
The following patch fixes it.
This bug was reported by Jeff Garzik.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/ipv6/route.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index f7f42c3e96cb..a7a537b50595 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1701,10 +1701,8 @@ static void fib6_dump_end(struct netlink_callback *cb)
fib6_walker_unlink(w);
kfree(w);
}
- if (cb->args[1]) {
- cb->done = (void*)cb->args[1];
- cb->args[1] = 0;
- }
+ cb->done = (void*)cb->args[1];
+ cb->args[1] = 0;
}
static int fib6_dump_done(struct netlink_callback *cb)
--
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