void snd_seq_cell_free(snd_seq_event_cell_t * cell) { unsigned long flags; pool_t *pool; snd_assert(cell != NULL, return); pool = cell->pool; snd_assert(pool != NULL, return); spin_lock_irqsave(&pool->lock, flags); free_cell(pool, cell); if (snd_seq_ev_is_variable(&cell->event)) { if (cell->event.data.ext.len & SNDRV_SEQ_EXT_CHAINED) { snd_seq_event_cell_t *curp, *nextptr; curp = cell->event.data.ext.ptr; for (; curp; curp = nextptr) { nextptr = curp->next; curp->next = pool->free; free_cell(pool, curp); } } } if (waitqueue_active(&pool->output_sleep)) { /* has enough space now? */ if (snd_seq_output_ok(pool)) wake_up(&pool->output_sleep); } spin_unlock_irqrestore(&pool->lock, flags); }
void snd_seq_cell_free(struct snd_seq_event_cell * cell) { unsigned long flags; struct snd_seq_pool *pool; if (snd_BUG_ON(!cell)) return; pool = cell->pool; if (snd_BUG_ON(!pool)) return; spin_lock_irqsave(&pool->lock, flags); free_cell(pool, cell); if (snd_seq_ev_is_variable(&cell->event)) { if (cell->event.data.ext.len & SNDRV_SEQ_EXT_CHAINED) { struct snd_seq_event_cell *curp, *nextptr; curp = cell->event.data.ext.ptr; for (; curp; curp = nextptr) { nextptr = curp->next; curp->next = pool->free; free_cell(pool, curp); } } } if (waitqueue_active(&pool->output_sleep)) { if (snd_seq_output_ok(pool)) wake_up(&pool->output_sleep); } spin_unlock_irqrestore(&pool->lock, flags); }
/* poll wait */ int snd_seq_pool_poll_wait(pool_t *pool, struct file *file, poll_table *wait) { poll_wait(file, &pool->output_sleep, wait); return snd_seq_output_ok(pool); }