firewire: remove superfluous reference counting
The card->kref became obsolete since patch "firewire: fix crash in
automatic module unloading" added another counter of card users.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c
index a034627..140b34d 100644
--- a/drivers/firewire/fw-card.c
+++ b/drivers/firewire/fw-card.c
@@ -398,7 +398,6 @@
{
static atomic_t index = ATOMIC_INIT(-1);
- kref_init(&card->kref);
atomic_set(&card->device_count, 0);
card->index = atomic_inc_return(&index);
card->driver = driver;
@@ -429,12 +428,6 @@
card->link_speed = link_speed;
card->guid = guid;
- /*
- * The subsystem grabs a reference when the card is added and
- * drops it when the driver calls fw_core_remove_card.
- */
- fw_card_get(card);
-
mutex_lock(&card_mutex);
config_rom = generate_config_rom(card, &length);
list_add_tail(&card->link, &card_list);
@@ -540,40 +533,9 @@
cancel_delayed_work_sync(&card->work);
fw_flush_transactions(card);
del_timer_sync(&card->flush_timer);
-
- fw_card_put(card);
}
EXPORT_SYMBOL(fw_core_remove_card);
-struct fw_card *
-fw_card_get(struct fw_card *card)
-{
- kref_get(&card->kref);
-
- return card;
-}
-EXPORT_SYMBOL(fw_card_get);
-
-static void
-release_card(struct kref *kref)
-{
- struct fw_card *card = container_of(kref, struct fw_card, kref);
-
- kfree(card);
-}
-
-/*
- * An assumption for fw_card_put() is that the card driver allocates
- * the fw_card struct with kalloc and that it has been shut down
- * before the last ref is dropped.
- */
-void
-fw_card_put(struct fw_card *card)
-{
- kref_put(&card->kref, release_card);
-}
-EXPORT_SYMBOL(fw_card_put);
-
int
fw_core_initiate_bus_reset(struct fw_card *card, int short_reset)
{
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index ca6d51e..07d6053 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -2077,7 +2077,7 @@
err = pci_enable_device(dev);
if (err) {
fw_error("Failed to enable OHCI hardware.\n");
- goto fail_put_card;
+ goto fail_free;
}
pci_set_master(dev);
@@ -2173,8 +2173,8 @@
pci_release_region(dev, 0);
fail_disable:
pci_disable_device(dev);
- fail_put_card:
- fw_card_put(&ohci->card);
+ fail_free:
+ kfree(&ohci->card);
return err;
}
@@ -2202,7 +2202,7 @@
pci_iounmap(dev, ohci->registers);
pci_release_region(dev, 0);
pci_disable_device(dev);
- fw_card_put(&ohci->card);
+ kfree(&ohci->card);
#ifdef CONFIG_PPC_PMAC
/* On UniNorth, power down the cable and turn off the chip clock
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
index a43bb22..1a22a23 100644
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -221,7 +221,6 @@
const struct fw_card_driver *driver;
struct device *device;
atomic_t device_count;
- struct kref kref;
int node_id;
int generation;
@@ -263,9 +262,6 @@
int bm_generation;
};
-struct fw_card *fw_card_get(struct fw_card *card);
-void fw_card_put(struct fw_card *card);
-
/*
* The iso packet format allows for an immediate header/payload part
* stored in 'header' immediately after the packet info plus an