s390/drivers: Cocci spatch "ptr_ret.spatch"

Signed-off-by: Thomas Meyer <[e-mail]>
Signed-off-by: Heiko Carstens <[e-mail]>
Signed-off-by: Martin Schwidefsky <[e-mail]>

drivers/s390/char/sclp.c

···
 		return rc;
 
 	sclp_pdev = platform_device_register_simple("sclp", -1, NULL, 0);
-	rc = IS_ERR(sclp_pdev) ? PTR_ERR(sclp_pdev) : 0;
+	rc = PTR_RET(sclp_pdev);
 	if (rc)
 		goto fail_platform_driver_unregister;
 

drivers/s390/char/sclp_cmd.c

···
 	if (rc)
 		goto out;
 	sclp_pdev = platform_device_register_simple("sclp_mem", -1, NULL, 0);
-	rc = IS_ERR(sclp_pdev) ? PTR_ERR(sclp_pdev) : 0;
+	rc = PTR_RET(sclp_pdev);
 	if (rc)
 		goto out_driver;
 	sclp_add_standby_memory();

drivers/s390/char/tape_class.c

···
 	tcd->class_device = device_create(tape_class, device,
 					  tcd->char_device->dev, NULL,
 					  "%s", tcd->device_name);
-	rc = IS_ERR(tcd->class_device) ? PTR_ERR(tcd->class_device) : 0;
+	rc = PTR_RET(tcd->class_device);
 	if (rc)
 		goto fail_with_cdev;
 	rc = sysfs_create_link(