diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index c7d1738e4e696630ed73605728ddec1b2037e820..e7bf9d89c8ee339c002dbc4dde38aab1f718ebbd 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -698,8 +698,10 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl
 		goto fail_io;
 
 	pdev = platform_device_register_simple(DRV_NAME, nr_legacy_host, NULL, 0);
-	if (pdev == NULL)
+	if (IS_ERR(pdev)) {
+		ret = PTR_ERR(pdev);
 		goto fail_dev;
+	}
 
 	if (ht6560a & mask) {
 		ops = &ht6560a_port_ops;
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c
index 36f621abc390729a3d143bb4b5cf06eeab87ca4f..afc0d990e7d6debecea9da3768e39cdc5c2e8364 100644
--- a/drivers/ata/pata_qdi.c
+++ b/drivers/ata/pata_qdi.c
@@ -247,8 +247,8 @@ static __init int qdi_init_one(unsigned long port, int type, unsigned long io, i
 	 */
 
 	pdev = platform_device_register_simple(DRV_NAME, nr_qdi_host, NULL, 0);
-	if (pdev == NULL)
-		return -ENOMEM;
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
 
 	memset(&ae, 0, sizeof(struct ata_probe_ent));
 	INIT_LIST_HEAD(&ae.node);
diff --git a/drivers/ata/pata_winbond.c b/drivers/ata/pata_winbond.c
index 3ea345cde52ed1ceaf595c9ffff1decb16ddb329..5d1f518e1cc7ab1d119e08f372004a28afbc840c 100644
--- a/drivers/ata/pata_winbond.c
+++ b/drivers/ata/pata_winbond.c
@@ -206,8 +206,8 @@ static __init int winbond_init_one(unsigned long port)
 			 */
 
 			pdev = platform_device_register_simple(DRV_NAME, nr_winbond_host, NULL, 0);
-			if (pdev == NULL)
-				return -ENOMEM;
+			if (IS_ERR(pdev))
+				return PTR_ERR(pdev);
 
 			memset(&ae, 0, sizeof(struct ata_probe_ent));
 			INIT_LIST_HEAD(&ae.node);