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authorStefan Richter <stefanr@s5r6.in-berlin.de>2009-10-08 00:41:10 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2009-10-14 23:10:48 +0200
commit9fb551bf72929b316abb6d96cfb2ec05e896042a (patch)
tree63c52c2b3c6ee05b11176ce16fa3eb9c7b69edad
parentfirewire: cdev: fix memory leak in an error path (diff)
downloadlinux-9fb551bf72929b316abb6d96cfb2ec05e896042a.tar.xz
linux-9fb551bf72929b316abb6d96cfb2ec05e896042a.zip
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>
-rw-r--r--drivers/firewire/core-card.c5
-rw-r--r--drivers/firewire/core-cdev.c38
-rw-r--r--drivers/firewire/sbp2.c9
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);
}