diff options
Diffstat (limited to 'drivers/firewire/fw-topology.c')
| -rw-r--r-- | drivers/firewire/fw-topology.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c index 0fc9b000e99..172c1867e9a 100644 --- a/drivers/firewire/fw-topology.c +++ b/drivers/firewire/fw-topology.c @@ -21,6 +21,7 @@ #include <linux/module.h> #include <linux/wait.h> #include <linux/errno.h> +#include <asm/system.h> #include "fw-transaction.h" #include "fw-topology.h" @@ -518,6 +519,11 @@ fw_core_handle_bus_reset(struct fw_card *card, card->bm_retries = 0; card->node_id = node_id; + /* + * Update node_id before generation to prevent anybody from using + * a stale node_id together with a current generation. + */ + smp_wmb(); card->generation = generation; card->reset_jiffies = jiffies; schedule_delayed_work(&card->work, 0); |