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>

3 files changed, 4 insertions, 46 deletions

diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c
index a03462750b95..140b34d477de 100644
--- a/drivers/firewire/fw-card.c
+++ b/drivers/firewire/fw-card.c
@@ -398,7 +398,6 @@ fw_card_initialize(struct fw_card *card, const struct fw_card_driver *driver,
 {
         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 @@ fw_card_add(struct fw_card *card,
         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 @@ fw_core_remove_card(struct fw_card *card)
         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 ca6d51efd8bb..07d6053ff57e 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -2077,7 +2077,7 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent)
         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_probe(struct pci_dev *dev, const struct pci_device_id *ent)
         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 @@ static void pci_remove(struct pci_dev *dev)
         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 a43bb22912f9..1a22a23e4596 100644
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -221,7 +221,6 @@ struct fw_card {
         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 @@ struct fw_card {
         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