diff --git a/drivers/scsi/arm/cumana_1.c b/drivers/scsi/arm/cumana_1.c
index c7dc65e39cdbcc9d19168675ce88424e001ef959..3b5ff105f1d66a3a2cae37f8687ae15c96871b87 100644
--- a/drivers/scsi/arm/cumana_1.c
+++ b/drivers/scsi/arm/cumana_1.c
@@ -245,12 +245,6 @@ static int cumanascsi1_probe(struct expansion_card *ec,
         priv(host)->ctrl = 0;
         writeb(0, priv(host)->base + CTRL);
 
-	host->n_io_port = 255;
-	if (!(request_region(host->io_port, host->n_io_port, "CumanaSCSI-1"))) {
-		ret = -EBUSY;
-		goto out_unmap;
-	}
-
 	ret = request_irq(host->irq, cumanascsi_intr, 0,
 			  "CumanaSCSI-1", host);
 	if (ret) {
diff --git a/drivers/scsi/dtc.c b/drivers/scsi/dtc.c
index 02a5532f4267e7f932b8a4e7fef753aae51054fb..698bea067af9438f597bd2101f63ce00f24c05d0 100644
--- a/drivers/scsi/dtc.c
+++ b/drivers/scsi/dtc.c
@@ -423,8 +423,6 @@ static int dtc_release(struct Scsi_Host *shost)
 	if (shost->irq != NO_IRQ)
 		free_irq(shost->irq, shost);
 	NCR5380_exit(shost);
-	if (shost->io_port && shost->n_io_port)
-		release_region(shost->io_port, shost->n_io_port);
 	scsi_unregister(shost);
 	iounmap(hostdata->base);
 	return 0;
diff --git a/drivers/scsi/pas16.c b/drivers/scsi/pas16.c
index c316ff7ffef6dc49dfafe62df23db313852afe1a..e5c76eefa5e08829a7694a701ec5bef5b59eaa40 100644
--- a/drivers/scsi/pas16.c
+++ b/drivers/scsi/pas16.c
@@ -540,8 +540,6 @@ static int pas16_release(struct Scsi_Host *shost)
 	if (shost->irq != NO_IRQ)
 		free_irq(shost->irq, shost);
 	NCR5380_exit(shost);
-	if (shost->io_port && shost->n_io_port)
-		release_region(shost->io_port, shost->n_io_port);
 	scsi_unregister(shost);
 	return 0;
 }
diff --git a/drivers/scsi/t128.c b/drivers/scsi/t128.c
index d5e6b676d75e49d60d3ed302142a7250dcef5b97..3adcae1150d28bd2c3f96d653c1a145e94461514 100644
--- a/drivers/scsi/t128.c
+++ b/drivers/scsi/t128.c
@@ -255,8 +255,6 @@ static int t128_release(struct Scsi_Host *shost)
 	if (shost->irq != NO_IRQ)
 		free_irq(shost->irq, shost);
 	NCR5380_exit(shost);
-	if (shost->io_port && shost->n_io_port)
-		release_region(shost->io_port, shost->n_io_port);
 	scsi_unregister(shost);
 	iounmap(hostdata->base);
 	return 0;