s390/zcrypt: remove gratuitious NULL check in .remove() callbacks

As .remove() is only called after a successful .probe() call, we can
trust that the drvdata is valid.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

drivers/s390/crypto/zcrypt_cex2a.c

@@ -132,8 +132,7 @@ static void zcrypt_cex2a_card_remove(struct ap_device *ap_dev)
 {
 	struct zcrypt_card *zc = dev_get_drvdata(&ap_dev->device);
 
-	if (zc)
-		zcrypt_card_unregister(zc);
+	zcrypt_card_unregister(zc);
 }
 
 static struct ap_driver zcrypt_cex2a_card_driver = {
@@ -192,8 +191,7 @@ static void zcrypt_cex2a_queue_remove(struct ap_device *ap_dev)
 {
 	struct zcrypt_queue *zq = dev_get_drvdata(&ap_dev->device);
 
-	if (zq)
-		zcrypt_queue_unregister(zq);
+	zcrypt_queue_unregister(zq);
 }
 
 static struct ap_driver zcrypt_cex2a_queue_driver = {

drivers/s390/crypto/zcrypt_cex2c.c

@@ -314,8 +314,8 @@ static void zcrypt_cex2c_card_remove(struct ap_device *ap_dev)
 
 	if (ap_test_bit(&ac->functions, AP_FUNC_COPRO))
 		sysfs_remove_group(&ap_dev->device.kobj, &cca_card_attr_grp);
-	if (zc)
-		zcrypt_card_unregister(zc);
+
+	zcrypt_card_unregister(zc);
 }
 
 static struct ap_driver zcrypt_cex2c_card_driver = {
@@ -387,8 +387,8 @@ static void zcrypt_cex2c_queue_remove(struct ap_device *ap_dev)
 
 	if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO))
 		sysfs_remove_group(&ap_dev->device.kobj, &cca_queue_attr_grp);
-	if (zq)
-		zcrypt_queue_unregister(zq);
+
+	zcrypt_queue_unregister(zq);
 }
 
 static struct ap_driver zcrypt_cex2c_queue_driver = {

drivers/s390/crypto/zcrypt_cex4.c

@@ -575,8 +575,8 @@ static void zcrypt_cex4_card_remove(struct ap_device *ap_dev)
 		sysfs_remove_group(&ap_dev->device.kobj, &cca_card_attr_grp);
 	else if (ap_test_bit(&ac->functions, AP_FUNC_EP11))
 		sysfs_remove_group(&ap_dev->device.kobj, &ep11_card_attr_grp);
-	if (zc)
-		zcrypt_card_unregister(zc);
+
+	zcrypt_card_unregister(zc);
 }
 
 static struct ap_driver zcrypt_cex4_card_driver = {
@@ -665,8 +665,8 @@ static void zcrypt_cex4_queue_remove(struct ap_device *ap_dev)
 		sysfs_remove_group(&ap_dev->device.kobj, &cca_queue_attr_grp);
 	else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11))
 		sysfs_remove_group(&ap_dev->device.kobj, &ep11_queue_attr_grp);
-	if (zq)
-		zcrypt_queue_unregister(zq);
+
+	zcrypt_queue_unregister(zq);
 }
 
 static struct ap_driver zcrypt_cex4_queue_driver = {