spin_unlock_irq(&ap->host_set->lock); 
spin_unlock_irqrestore(&ap->host_set->lock, flags); 
void ata_poll_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat){	struct ata_port *ap = qc->ap;	spin_lock_irq(&ap->host_set->lock);	ap->flags &= ~ATA_FLAG_NOINTR;	ata_irq_on(ap);	ata_qc_complete(qc, drv_stat);	spin_unlock_irq(&ap->host_set->lock);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/b8f6153ee421014f42b620238f4203a4106db309/libata-core.c/buggy/drivers/scsi/libata-core.c