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Date:	Sun,  8 Jul 2012 13:37:38 +0200
From:	Julia Lawall <>
To:	Karsten Keil <>
Subject: [PATCH 1/7] drivers/isdn/mISDN/stack.c: remove invalid reference to list iterator variable

From: Julia Lawall <>

If list_for_each_entry, etc complete a traversal of the list, the iterator
variable ends up pointing to an address at an offset from the list head,
and not a meaningful structure.  Thus this value should not be used after
the end of the iterator.  The dereferences are just deleted from the
debugging statement.

This problem was found using Coccinelle (

Signed-off-by: Julia Lawall <>

 drivers/isdn/mISDN/stack.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c
index 1a0ae44..5f21f62 100644
--- a/drivers/isdn/mISDN/stack.c
+++ b/drivers/isdn/mISDN/stack.c
@@ -135,8 +135,8 @@ send_layer2(struct mISDNstack *st, struct sk_buff *skb)
 			skb = NULL;
 		else if (*debug & DEBUG_SEND_ERR)
-			       "%s ch%d mgr prim(%x) addr(%x) err %d\n",
-			       __func__, ch->nr, hh->prim, ch->addr, ret);
+			       "%s mgr prim(%x) err %d\n",
+			       __func__, hh->prim, ret);

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