diff options
| author | Kristian Høgsberg <krh@redhat.com> | 2007-03-07 12:12:39 -0500 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2007-03-09 22:03:07 +0100 |
| commit | 5f48047756339065df3e6fead381978abb0bc557 (patch) | |
| tree | c13766ebd8900e6662e7117beea67da80363e28a /drivers/firewire/fw-device.c | |
| parent | e254a4b45f265d9df120b83d5c2c9437902b601b (diff) | |
firewire: Iterate through units in a keventd callback for update callbacks.
We can't take the klist lock for the child device list in interrupt
context.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire/fw-device.c')
| -rw-r--r-- | drivers/firewire/fw-device.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c index e8f2dc3151b..5599265da4a 100644 --- a/drivers/firewire/fw-device.c +++ b/drivers/firewire/fw-device.c @@ -530,6 +530,14 @@ static int update_unit(struct device *dev, void *data) return 0; } +static void fw_device_update(struct work_struct *work) +{ + struct fw_device *device = + container_of(work, struct fw_device, work.work); + + device_for_each_child(&device->device, NULL, update_unit); +} + void fw_node_event(struct fw_card *card, struct fw_node *node, int event) { struct fw_device *device; @@ -577,7 +585,10 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event) device = node->data; device->node_id = node->node_id; device->generation = card->generation; - device_for_each_child(&device->device, NULL, update_unit); + if (atomic_read(&device->state) == FW_DEVICE_RUNNING) { + PREPARE_DELAYED_WORK(&device->work, fw_device_update); + schedule_delayed_work(&device->work, 0); + } break; case FW_NODE_DESTROYED: @@ -597,8 +608,8 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event) * to create the device. */ device = node->data; if (atomic_xchg(&device->state, - FW_DEVICE_SHUTDOWN) == FW_DEVICE_RUNNING) { - INIT_DELAYED_WORK(&device->work, fw_device_shutdown); + FW_DEVICE_SHUTDOWN) == FW_DEVICE_RUNNING) { + PREPARE_DELAYED_WORK(&device->work, fw_device_shutdown); schedule_delayed_work(&device->work, 0); } break; |