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path: root/sound/firewire/fireworks/fireworks_transaction.c
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Diffstat (limited to 'sound/firewire/fireworks/fireworks_transaction.c')
-rw-r--r--sound/firewire/fireworks/fireworks_transaction.c39
1 files changed, 14 insertions, 25 deletions
diff --git a/sound/firewire/fireworks/fireworks_transaction.c b/sound/firewire/fireworks/fireworks_transaction.c
index 9f8c53b39f95..5c859773fe06 100644
--- a/sound/firewire/fireworks/fireworks_transaction.c
+++ b/sound/firewire/fireworks/fireworks_transaction.c
@@ -82,9 +82,9 @@ int snd_efw_transaction_run(struct fw_unit *unit,
t.state = STATE_PENDING;
init_waitqueue_head(&t.wait);
- spin_lock_irq(&transaction_queues_lock);
- list_add_tail(&t.list, &transaction_queues);
- spin_unlock_irq(&transaction_queues_lock);
+ scoped_guard(spinlock_irq, &transaction_queues_lock) {
+ list_add_tail(&t.list, &transaction_queues);
+ }
tries = 0;
do {
@@ -107,9 +107,9 @@ int snd_efw_transaction_run(struct fw_unit *unit,
}
} while (1);
- spin_lock_irq(&transaction_queues_lock);
- list_del(&t.list);
- spin_unlock_irq(&transaction_queues_lock);
+ scoped_guard(spinlock_irq, &transaction_queues_lock) {
+ list_del(&t.list);
+ }
return ret;
}
@@ -123,7 +123,7 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode)
t = (struct snd_efw_transaction *)data;
length = min_t(size_t, be32_to_cpu(t->length) * sizeof(u32), length);
- spin_lock(&efw->lock);
+ guard(spinlock)(&efw->lock);
if (efw->push_ptr < efw->pull_ptr)
capacity = (unsigned int)(efw->pull_ptr - efw->push_ptr);
@@ -134,7 +134,7 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode)
/* confirm enough space for this response */
if (capacity < length) {
*rcode = RCODE_CONFLICT_ERROR;
- goto end;
+ return;
}
/* copy to ring buffer */
@@ -157,8 +157,6 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode)
wake_up(&efw->hwdep_wait);
*rcode = RCODE_COMPLETE;
-end:
- spin_unlock_irq(&efw->lock);
}
static void
@@ -169,7 +167,7 @@ handle_resp_for_user(struct fw_card *card, int generation, int source,
struct snd_efw *efw;
unsigned int i;
- spin_lock_irq(&instances_lock);
+ guard(spinlock_irq)(&instances_lock);
for (i = 0; i < SNDRV_CARDS; i++) {
efw = instances[i];
@@ -186,11 +184,9 @@ handle_resp_for_user(struct fw_card *card, int generation, int source,
break;
}
if (i == SNDRV_CARDS)
- goto end;
+ return;
copy_resp_to_buf(efw, data, length, rcode);
-end:
- spin_unlock(&instances_lock);
}
static void
@@ -199,9 +195,8 @@ handle_resp_for_kernel(struct fw_card *card, int generation, int source,
{
struct fw_device *device;
struct transaction_queue *t;
- unsigned long flags;
- spin_lock_irqsave(&transaction_queues_lock, flags);
+ guard(spinlock_irqsave)(&transaction_queues_lock);
list_for_each_entry(t, &transaction_queues, list) {
device = fw_parent_device(t->unit);
if ((device->card != card) ||
@@ -219,7 +214,6 @@ handle_resp_for_kernel(struct fw_card *card, int generation, int source,
*rcode = RCODE_COMPLETE;
}
}
- spin_unlock_irqrestore(&transaction_queues_lock, flags);
}
static void
@@ -259,7 +253,7 @@ void snd_efw_transaction_add_instance(struct snd_efw *efw)
{
unsigned int i;
- spin_lock_irq(&instances_lock);
+ guard(spinlock_irq)(&instances_lock);
for (i = 0; i < SNDRV_CARDS; i++) {
if (instances[i] != NULL)
@@ -267,30 +261,26 @@ void snd_efw_transaction_add_instance(struct snd_efw *efw)
instances[i] = efw;
break;
}
-
- spin_unlock_irq(&instances_lock);
}
void snd_efw_transaction_remove_instance(struct snd_efw *efw)
{
unsigned int i;
- spin_lock_irq(&instances_lock);
+ guard(spinlock_irq)(&instances_lock);
for (i = 0; i < SNDRV_CARDS; i++) {
if (instances[i] != efw)
continue;
instances[i] = NULL;
}
-
- spin_unlock_irq(&instances_lock);
}
void snd_efw_transaction_bus_reset(struct fw_unit *unit)
{
struct transaction_queue *t;
- spin_lock_irq(&transaction_queues_lock);
+ guard(spinlock_irq)(&transaction_queues_lock);
list_for_each_entry(t, &transaction_queues, list) {
if ((t->unit == unit) &&
(t->state == STATE_PENDING)) {
@@ -298,7 +288,6 @@ void snd_efw_transaction_bus_reset(struct fw_unit *unit)
wake_up(&t->wait);
}
}
- spin_unlock_irq(&transaction_queues_lock);
}
static struct fw_address_handler resp_register_handler = {