ata_qc_complete(qc, 0); 
ata_qc_complete(qc, pp->tf.command); 
static inline void sil24_host_intr(struct ata_port *ap){	struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);	void *port = (void *)ap->ioaddr.cmd_addr;	u32 slot_stat;	slot_stat = readl(port + PORT_SLOT_STAT);	if (!(slot_stat & HOST_SSTAT_ATTN)) {		if (qc)			ata_qc_complete(qc, 0);	} else		sil24_error_intr(ap, slot_stat);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/6a575fa969beeddd0859f9e9d26ab16c6a0d8d6a/sata_sil24.c/buggy/drivers/scsi/sata_sil24.c