firewire: in-code doc updates.

Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (update)

diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c
index 45e6f9bfe99caea57afd13cb4a6c7be4ba145c86..0fc9b000e99dcdc714a42d58aa8865395cce0759 100644 (file)
--- 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);