firewire: normalize style of queue_work wrappers

A few stylistic changes to unify some code patterns in the subsystem:

  - The similar queue_delayed_work helpers fw_schedule_bm_work,
    schedule_iso_resource, and sbp2_queue_work now have the same call
    convention.
  - Two conditional calls of schedule_iso_resource are factored into
    another small helper.
  - An sbp2_target_get helper is added as counterpart to
    sbp2_target_put.

Object size of firewire-core is decreased a little bit, object size of
firewire-sbp2 remains unchanged.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

3 files changed, 27 insertions, 25 deletions

diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index e4864e894e4f..33898b63cdf7 100644
--- a/drivers/firewire/core-card.c
+++ b/drivers/firewire/core-card.c
@@ -211,11 +211,8 @@ static const char gap_count_table[] = {
 
 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)
+        if (!schedule_delayed_work(&card->work, delay))
                 fw_card_put(card);
 }
 
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 0516acd55ab9..c5f63a939651 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -129,9 +129,22 @@ struct iso_resource {
         struct iso_resource_event *e_alloc, *e_dealloc;
 };
 
-static void schedule_iso_resource(struct iso_resource *);
 static void release_iso_resource(struct client *, struct client_resource *);
 
+static void schedule_iso_resource(struct iso_resource *r, unsigned long delay)
+{
+        client_get(r->client);
+        if (!schedule_delayed_work(&r->work, delay))
+                client_put(r->client);
+}
+
+static void schedule_if_iso_resource(struct client_resource *resource)
+{
+        if (resource->release == release_iso_resource)
+                schedule_iso_resource(container_of(resource,
+                                        struct iso_resource, resource), 0);
+}
+
 /*
  * dequeue_event() just kfree()'s the event, so the event has to be
  * the first field in a struct XYZ_event.
@@ -313,11 +326,8 @@ static void for_each_client(struct fw_device *device,
 
 static int schedule_reallocations(int id, void *p, void *data)
 {
-        struct client_resource *r = p;
+        schedule_if_iso_resource(p);
 
-        if (r->release == release_iso_resource)
-                schedule_iso_resource(container_of(r,
-                                        struct iso_resource, resource));
         return 0;
 }
 
@@ -413,9 +423,7 @@ static int add_client_resource(struct client *client,
                                   &resource->handle);
         if (ret >= 0) {
                 client_get(client);
-                if (resource->release == release_iso_resource)
-                        schedule_iso_resource(container_of(resource,
-                                                struct iso_resource, resource));
+                schedule_if_iso_resource(resource);
         }
         spin_unlock_irqrestore(&client->lock, flags);
 
@@ -1032,8 +1040,7 @@ static void iso_resource_work(struct work_struct *work)
         /* Allow 1000ms grace period for other reallocations. */
         if (todo == ISO_RES_ALLOC &&
             time_is_after_jiffies(client->device->card->reset_jiffies + HZ)) {
-                if (schedule_delayed_work(&r->work, DIV_ROUND_UP(HZ, 3)))
-                        client_get(client);
+                schedule_iso_resource(r, DIV_ROUND_UP(HZ, 3));
                 skip = true;
         } else {
                 /* We could be called twice within the same generation. */
@@ -1118,13 +1125,6 @@ static void iso_resource_work(struct work_struct *work)
         client_put(client);
 }
 
-static void schedule_iso_resource(struct iso_resource *r)
-{
-        client_get(r->client);
-        if (!schedule_delayed_work(&r->work, 0))
-                client_put(r->client);
-}
-
 static void release_iso_resource(struct client *client,
                                  struct client_resource *resource)
 {
@@ -1133,7 +1133,7 @@ static void release_iso_resource(struct client *client,
 
         spin_lock_irq(&client->lock);
         r->todo = ISO_RES_DEALLOC;
-        schedule_iso_resource(r);
+        schedule_iso_resource(r, 0);
         spin_unlock_irq(&client->lock);
 }
 
@@ -1179,7 +1179,7 @@ static int init_iso_resource(struct client *client,
         } else {
                 r->resource.release = NULL;
                 r->resource.handle = -1;
-                schedule_iso_resource(r);
+                schedule_iso_resource(r, 0);
         }
         request->handle = r->resource.handle;
 
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 98dbbda3ad41..d485cdd8cbac 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -820,20 +820,25 @@ static void sbp2_release_target(struct kref *kref)
         fw_device_put(device);
 }
 
-static struct workqueue_struct *sbp2_wq;
+static void sbp2_target_get(struct sbp2_target *tgt)
+{
+        kref_get(&tgt->kref);
+}
 
 static void sbp2_target_put(struct sbp2_target *tgt)
 {
         kref_put(&tgt->kref, sbp2_release_target);
 }
 
+static struct workqueue_struct *sbp2_wq;
+
 /*
  * Always get the target's kref when scheduling work on one its units.
  * Each workqueue job is responsible to call sbp2_target_put() upon return.
  */
 static void sbp2_queue_work(struct sbp2_logical_unit *lu, unsigned long delay)
 {
-        kref_get(&lu->tgt->kref);
+        sbp2_target_get(lu->tgt);
         if (!queue_delayed_work(sbp2_wq, &lu->work, delay))
                 sbp2_target_put(lu->tgt);
 }