From c1b91ce49158d607666dbef5b8d53cd77d397589 Mon Sep 17 00:00:00 2001
From: Yann Dirson <ydirson@altern.org>
Date: Sun, 7 Oct 2007 02:21:29 +0200
Subject: [PATCH] firewire: in-code doc updates.

Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (update)
---
 drivers/firewire/fw-topology.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c
index 45e6f9bfe99c..0fc9b000e99d 100644
--- a/drivers/firewire/fw-topology.c
+++ b/drivers/firewire/fw-topology.c
@@ -166,7 +166,7 @@ static inline struct fw_node *fw_node(struct list_head *l)
  * This function builds the tree representation of the topology given
  * by the self IDs from the latest bus reset.  During the construction
  * of the tree, the function checks that the self IDs are valid and
- * internally consistent.  On succcess this funtions returns the
+ * internally consistent.  On succcess this function returns the
  * fw_node corresponding to the local card otherwise NULL.
  */
 static struct fw_node *build_tree(struct fw_card *card,
@@ -215,6 +215,10 @@ static struct fw_node *build_tree(struct fw_card *card,
 		 */
 		for (i = 0, h = &stack; i < child_port_count; i++)
 			h = h->prev;
+		/*
+		 * When the stack is empty, this yields an invalid value,
+		 * but that pointer will never be dereferenced.
+		 */
 		child = fw_node(h);
 
 		node = fw_node_create(q, port_count, card->color);
-- 
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