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authorStefan Richter <stefanr@s5r6.in-berlin.de>2009-01-24 20:35:38 +0100
committerStefan Richter <stefanr@s5r6.in-berlin.de>2009-01-24 20:40:12 +0100
commite747a5c0be3efe5465e45c8e326bc766b1288be6 (patch)
treea9abc47b46e079e38f4477f858dd6ddd791c546c /drivers/firewire/fw-device.c
parent64c634ef83991b390ec0503e61f16efb0ba3c60b (diff)
downloadlinux-e747a5c0be3efe5465e45c8e326bc766b1288be6.tar.gz
firewire: core: optimize card shutdown
This fixes a regression by "firewire: keep highlevel drivers attached
during brief connection loss":  There were 2 seconds unnecessary waiting
added to the shutdown procedure of each controller.

We use card->link as status flag to signal the device handler that there
is no use to wait for a come-back.

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.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c
index 0925d91b2610..bf53acb45652 100644
--- a/drivers/firewire/fw-device.c
+++ b/drivers/firewire/fw-device.c
@@ -657,7 +657,8 @@ static void fw_device_shutdown(struct work_struct *work)
 		container_of(work, struct fw_device, work.work);
 	int minor = MINOR(device->device.devt);
 
-	if (time_is_after_jiffies(device->card->reset_jiffies + SHUTDOWN_DELAY)) {
+	if (time_is_after_jiffies(device->card->reset_jiffies + SHUTDOWN_DELAY)
+	    && !list_empty(&device->card->link)) {
 		schedule_delayed_work(&device->work, SHUTDOWN_DELAY);
 		return;
 	}
@@ -1074,7 +1075,8 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event)
 		if (atomic_xchg(&device->state,
 				FW_DEVICE_GONE) == FW_DEVICE_RUNNING) {
 			PREPARE_DELAYED_WORK(&device->work, fw_device_shutdown);
-			schedule_delayed_work(&device->work, SHUTDOWN_DELAY);
+			schedule_delayed_work(&device->work,
+				list_empty(&card->link) ? 0 : SHUTDOWN_DELAY);
 		}
 		break;
 	}