netdev - [PATCH] pppoe: fix /proc/net/pppoe

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Message-ID: <4A7019AC.5000402@gmail.com>
Date:	Wed, 29 Jul 2009 11:43:08 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"David S. Miller" <davem@...emloft.net>
CC:	Pavel Emelyanov <xemul@...nvz.org>,
	Igor M Podlesny <for.poige+bugzilla.kernel.org@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	netdev@...r.kernel.org, Cyrill Gorcunov <gorcunov@...il.com>
Subject: [PATCH] pppoe: fix /proc/net/pppoe

Found this one by pppoe code inspection, but this is an old bug.

Igor, this wont fix your problem, sorry !

[PATCH] pppoe: fix /proc/net/pppoe

If a socket is hashed in last slot of pppoe hash table (PPPOE_HASH_SIZE-1)
we report it many times (up to filling seq buffer)
(Only the last socket of last slot)


Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
---
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index f0031f1..5f20902 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -1063,6 +1063,7 @@ static void *pppoe_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 	else {
 		int hash = hash_item(po->pppoe_pa.sid, po->pppoe_pa.remote);
 
+		po = NULL;
 		while (++hash < PPPOE_HASH_SIZE) {
 			po = pn->hash_table[hash];
 			if (po)
--
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