media: pci: cx88: convert to use i2c_new_client_device()

Move away from the deprecated API and make use of the fact that
unregistering devices is NULL- and ERR_PTR-safe.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/pci/cx88/cx88-core.c

@@ -1070,8 +1070,7 @@ void cx88_core_put(struct cx88_core *core, struct pci_dev *pci)
 	mutex_lock(&devlist);
 	cx88_ir_fini(core);
 	if (core->i2c_rc == 0) {
-		if (core->i2c_rtc)
-			i2c_unregister_device(core->i2c_rtc);
+		i2c_unregister_device(core->i2c_rtc);
 		i2c_del_adapter(&core->i2c_adap);
 	}
 	list_del(&core->devlist);

drivers/media/pci/cx88/cx88-input.c

@@ -638,7 +638,7 @@ void cx88_i2c_init_ir(struct cx88_core *core)
 				   I2C_SMBUS_READ, 0,
 				   I2C_SMBUS_QUICK, NULL) >= 0) {
 			info.addr = *addrp;
-			i2c_new_device(&core->i2c_adap, &info);
+			i2c_new_client_device(&core->i2c_adap, &info);
 			break;
 		}
 	}

drivers/media/pci/cx88/cx88-video.c

@@ -1385,7 +1385,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 		};
 
 		request_module("rtc-isl1208");
-		core->i2c_rtc = i2c_new_device(&core->i2c_adap, &rtc_info);
+		core->i2c_rtc = i2c_new_client_device(&core->i2c_adap, &rtc_info);
 	}
 		/* fall-through */
 	case CX88_BOARD_DVICO_FUSIONHDTV_5_PCI_NANO: