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path: root/drivers/firewire/fw-card.c
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Diffstat (limited to 'drivers/firewire/fw-card.c')
-rw-r--r--drivers/firewire/fw-card.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c
index 418c18f07e9..799f94424c8 100644
--- a/drivers/firewire/fw-card.c
+++ b/drivers/firewire/fw-card.c
@@ -75,7 +75,7 @@ generate_config_rom(struct fw_card *card, size_t *config_rom_length)
* controller, block reads to the config rom accesses the host
* memory, but quadlet read access the hardware bus info block
* registers. That's just crack, but it means we should make
- * sure the contents of bus info block in host memory mathces
+ * sure the contents of bus info block in host memory matches
* the version stored in the OHCI registers.
*/
@@ -189,6 +189,17 @@ static const char gap_count_table[] = {
63, 5, 7, 8, 10, 13, 16, 18, 21, 24, 26, 29, 32, 35, 37, 40
};
+void
+fw_schedule_bm_work(struct fw_card *card, unsigned long delay)
+{
+ int scheduled;
+
+ fw_card_get(card);
+ scheduled = schedule_delayed_work(&card->work, delay);
+ if (!scheduled)
+ fw_card_put(card);
+}
+
static void
fw_card_bm_work(struct work_struct *work)
{
@@ -206,7 +217,7 @@ fw_card_bm_work(struct work_struct *work)
if (local_node == NULL) {
spin_unlock_irqrestore(&card->lock, flags);
- return;
+ goto out_put_card;
}
fw_node_get(local_node);
fw_node_get(root_node);
@@ -280,7 +291,7 @@ fw_card_bm_work(struct work_struct *work)
* this task 100ms from now.
*/
spin_unlock_irqrestore(&card->lock, flags);
- schedule_delayed_work(&card->work, DIV_ROUND_UP(HZ, 10));
+ fw_schedule_bm_work(card, DIV_ROUND_UP(HZ, 10));
goto out;
}
@@ -355,6 +366,8 @@ fw_card_bm_work(struct work_struct *work)
fw_device_put(root_device);
fw_node_put(root_node);
fw_node_put(local_node);
+ out_put_card:
+ fw_card_put(card);
}
static void
@@ -510,7 +523,6 @@ fw_core_remove_card(struct fw_card *card)
fw_card_put(card);
wait_for_completion(&card->done);
- cancel_delayed_work_sync(&card->work);
WARN_ON(!list_empty(&card->transaction_list));
del_timer_sync(&card->flush_timer);
}