Merge branches 'x86/acpi', 'x86/asm', 'x86/cpudetect', 'x86/crashdump', 'x86/debug...

[linux-2.6-omap-h63xx.git] / drivers / firewire / fw-topology.c

diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c
index c9be6e6948c4aec745e71a3cd25e4990ebf65f57..8dd6703b55cd00702f64f84272d3d523d7112ec6 100644 (file)
--- a/drivers/firewire/fw-topology.c
+++ b/drivers/firewire/fw-topology.c
@@ -518,6 +518,18 @@ fw_core_handle_bus_reset(struct fw_card *card,
        struct fw_node *local_node;
        unsigned long flags;
 
+       /*
+        * If the selfID buffer is not the immediate successor of the
+        * previously processed one, we cannot reliably compare the
+        * old and new topologies.
+        */
+       if (!is_next_generation(generation, card->generation) &&
+           card->local_node != NULL) {
+               fw_notify("skipped bus generations, destroying all nodes\n");
+               fw_destroy_nodes(card);
+               card->bm_retries = 0;
+       }
+
        spin_lock_irqsave(&card->lock, flags);
 
        card->node_id = node_id;