[PATCH] firewire: warn on fatal condition in topology code

From: Stefan Richter
Date: Sat Mar 08 2008 - 16:39:14 EST


If this ever happens to anybody, we want to have it in his log.

Signed-off-by: Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx>
---
drivers/firewire/fw-topology.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux/drivers/firewire/fw-topology.c
===================================================================
--- linux.orig/drivers/firewire/fw-topology.c
+++ linux/drivers/firewire/fw-topology.c
@@ -21,6 +21,7 @@
#include <linux/module.h>
#include <linux/wait.h>
#include <linux/errno.h>
+#include <asm/bug.h>
#include <asm/system.h>
#include "fw-transaction.h"
#include "fw-topology.h"
@@ -425,8 +426,8 @@ update_tree(struct fw_card *card, struct
node1 = fw_node(list1.next);

while (&node0->link != &list0) {
+ WARN_ON(node0->port_count != node1->port_count);

- /* assert(node0->port_count == node1->port_count); */
if (node0->link_on && !node1->link_on)
event = FW_NODE_LINK_OFF;
else if (!node0->link_on && node1->link_on)

--
Stefan Richter
-=====-==--- --== -=---
http://arcgraph.de/sr/

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