diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index e03ce48..9d76923 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -45,7 +45,7 @@
 				      struct ata_device *dev);
 extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
 extern void ata_qc_free(struct ata_queued_cmd *qc);
-extern int ata_qc_issue(struct ata_queued_cmd *qc);
+extern unsigned int ata_qc_issue(struct ata_queued_cmd *qc);
 extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
 extern void ata_dev_select(struct ata_port *ap, unsigned int device,
                            unsigned int wait, unsigned int can_sleep);