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Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai --- sound/core/seq/seq_queue.c | 78 ++++++++++++++------------------------ 1 file changed, 28 insertions(+), 50 deletions(-) diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c index bc933104c3ee..500ee6b19c71 100644 --- a/sound/core/seq/seq_queue.c +++ b/sound/core/seq/seq_queue.c @@ -50,43 +50,35 @@ int snd_seq_queue_get_cur_queues(void) static int queue_list_add(struct snd_seq_queue *q) { int i; - unsigned long flags; - spin_lock_irqsave(&queue_list_lock, flags); + guard(spinlock_irqsave)(&queue_list_lock); for (i = 0; i < SNDRV_SEQ_MAX_QUEUES; i++) { if (! queue_list[i]) { queue_list[i] = q; q->queue = i; num_queues++; - spin_unlock_irqrestore(&queue_list_lock, flags); return i; } } - spin_unlock_irqrestore(&queue_list_lock, flags); return -1; } static struct snd_seq_queue *queue_list_remove(int id, int client) { struct snd_seq_queue *q; - unsigned long flags; - spin_lock_irqsave(&queue_list_lock, flags); + guard(spinlock_irqsave)(&queue_list_lock); q = queue_list[id]; if (q) { - spin_lock(&q->owner_lock); + guard(spinlock)(&q->owner_lock); if (q->owner == client) { /* found */ q->klocked = 1; - spin_unlock(&q->owner_lock); queue_list[id] = NULL; num_queues--; - spin_unlock_irqrestore(&queue_list_lock, flags); return q; } - spin_unlock(&q->owner_lock); } - spin_unlock_irqrestore(&queue_list_lock, flags); return NULL; } @@ -203,15 +195,13 @@ int snd_seq_queue_delete(int client, int queueid) struct snd_seq_queue *queueptr(int queueid) { struct snd_seq_queue *q; - unsigned long flags; if (queueid < 0 || queueid >= SNDRV_SEQ_MAX_QUEUES) return NULL; - spin_lock_irqsave(&queue_list_lock, flags); + guard(spinlock_irqsave)(&queue_list_lock); q = queue_list[queueid]; if (q) snd_use_lock_use(&q->use_lock); - spin_unlock_irqrestore(&queue_list_lock, flags); return q; } @@ -239,7 +229,6 @@ struct snd_seq_queue *snd_seq_queue_find_name(char *name) void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop) { - unsigned long flags; struct snd_seq_event_cell *cell; snd_seq_tick_time_t cur_tick; snd_seq_real_time_t cur_time; @@ -249,14 +238,13 @@ void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop) return; /* make this function non-reentrant */ - spin_lock_irqsave(&q->check_lock, flags); - if (q->check_blocked) { - q->check_again = 1; - spin_unlock_irqrestore(&q->check_lock, flags); - return; /* other thread is already checking queues */ + scoped_guard(spinlock_irqsave, &q->check_lock) { + if (q->check_blocked) { + q->check_again = 1; + return; /* other thread is already checking queues */ + } + q->check_blocked = 1; } - q->check_blocked = 1; - spin_unlock_irqrestore(&q->check_lock, flags); __again: /* Process tick queue... */ @@ -283,16 +271,14 @@ void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop) out: /* free lock */ - spin_lock_irqsave(&q->check_lock, flags); - if (q->check_again) { - q->check_again = 0; - if (processed < MAX_CELL_PROCESSES_IN_QUEUE) { - spin_unlock_irqrestore(&q->check_lock, flags); - goto __again; + scoped_guard(spinlock_irqsave, &q->check_lock) { + if (q->check_again) { + q->check_again = 0; + if (processed < MAX_CELL_PROCESSES_IN_QUEUE) + goto __again; } + q->check_blocked = 0; } - q->check_blocked = 0; - spin_unlock_irqrestore(&q->check_lock, flags); } @@ -361,25 +347,20 @@ static inline int check_access(struct snd_seq_queue *q, int client) */ static int queue_access_lock(struct snd_seq_queue *q, int client) { - unsigned long flags; int access_ok; - spin_lock_irqsave(&q->owner_lock, flags); + guard(spinlock_irqsave)(&q->owner_lock); access_ok = check_access(q, client); if (access_ok) q->klocked = 1; - spin_unlock_irqrestore(&q->owner_lock, flags); return access_ok; } /* unlock the queue */ static inline void queue_access_unlock(struct snd_seq_queue *q) { - unsigned long flags; - - spin_lock_irqsave(&q->owner_lock, flags); + guard(spinlock_irqsave)(&q->owner_lock); q->klocked = 0; - spin_unlock_irqrestore(&q->owner_lock, flags); } /* exported - only checking permission */ @@ -387,13 +368,11 @@ int snd_seq_queue_check_access(int queueid, int client) { struct snd_seq_queue *q = queueptr(queueid); int access_ok; - unsigned long flags; if (! q) return 0; - spin_lock_irqsave(&q->owner_lock, flags); - access_ok = check_access(q, client); - spin_unlock_irqrestore(&q->owner_lock, flags); + scoped_guard(spinlock_irqsave, &q->owner_lock) + access_ok = check_access(q, client); queuefree(q); return access_ok; } @@ -406,7 +385,6 @@ int snd_seq_queue_check_access(int queueid, int client) int snd_seq_queue_set_owner(int queueid, int client, int locked) { struct snd_seq_queue *q = queueptr(queueid); - unsigned long flags; if (q == NULL) return -EINVAL; @@ -416,10 +394,10 @@ int snd_seq_queue_set_owner(int queueid, int client, int locked) return -EPERM; } - spin_lock_irqsave(&q->owner_lock, flags); - q->locked = locked ? 1 : 0; - q->owner = client; - spin_unlock_irqrestore(&q->owner_lock, flags); + scoped_guard(spinlock_irqsave, &q->owner_lock) { + q->locked = locked ? 1 : 0; + q->owner = client; + } queue_access_unlock(q); queuefree(q); @@ -750,10 +728,10 @@ void snd_seq_info_queues_read(struct snd_info_entry *entry, else bpm = 0; - spin_lock_irq(&q->owner_lock); - locked = q->locked; - owner = q->owner; - spin_unlock_irq(&q->owner_lock); + scoped_guard(spinlock_irq, &q->owner_lock) { + locked = q->locked; + owner = q->owner; + } snd_iprintf(buffer, "queue %d: [%s]\n", q->queue, q->name); snd_iprintf(buffer, "owned by client : %d\n", owner);