Re: [PATCH v2 2/4] rtc: isl1208: switch to rtc_register_device

[kbuild test robot]

Hi Denis,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on abelloni/rtc-next]
[also build test ERROR on v4.16-rc3 next-20180302]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Denis-OSTERLAND/rtc-isl1208-fixes-documentation-and-isl1219-support/20180303-093405
base:   https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
config: x86_64-randconfig-x017-201808 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

Note: the linux-review/Denis-OSTERLAND/rtc-isl1208-fixes-documentation-and-isl1219-support/20180303-093405 HEAD 1d3cf882ecd061847968da1511ec956b9bf70d33 builds fine.
      It only hurts bisectibility.

All error/warnings (new ones prefixed by >>):

   In file included from drivers/rtc/rtc-isl1208.c:16:0:
   drivers/rtc/rtc-isl1208.c: In function 'isl1208_probe':
>> drivers/rtc/rtc-isl1208.c:677:29: error: 'isl1208' undeclared (first use in this function)
     return rtc_register_device(isl1208->rtc);
                                ^
   include/linux/rtc.h:261:37: note: in definition of macro 'rtc_register_device'
     __rtc_register_device(THIS_MODULE, device)
                                        ^~~~~~
   drivers/rtc/rtc-isl1208.c:677:29: note: each undeclared identifier is reported only once for each function it appears in
     return rtc_register_device(isl1208->rtc);
                                ^
   include/linux/rtc.h:261:37: note: in definition of macro 'rtc_register_device'
     __rtc_register_device(THIS_MODULE, device)
                                        ^~~~~~
>> drivers/rtc/rtc-isl1208.c:678:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^

vim +/isl1208 +677 drivers/rtc/rtc-isl1208.c

   625	
   626	static int
   627	isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id)
   628	{
   629		int rc = 0;
   630		struct rtc_device *rtc;
   631	
   632		if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
   633			return -ENODEV;
   634	
   635		if (isl1208_i2c_validate_client(client) < 0)
   636			return -ENODEV;
   637	
   638		rtc = devm_rtc_allocate_device(&client->dev);
   639		if (IS_ERR(rtc))
   640			return PTR_ERR(rtc);
   641	
   642		rtc->ops = &isl1208_rtc_ops;
   643	
   644		i2c_set_clientdata(client, rtc);
   645	
   646		rc = isl1208_i2c_get_sr(client);
   647		if (rc < 0) {
   648			dev_err(&client->dev, "reading status failed\n");
   649			return rc;
   650		}
   651	
   652		if (rc & ISL1208_REG_SR_RTCF)
   653			dev_warn(&client->dev, "rtc power failure detected, "
   654				 "please set clock.\n");
   655	
   656		rc = sysfs_create_group(&client->dev.kobj, &isl1208_rtc_sysfs_files);
   657		if (rc)
   658			return rc;
   659	
   660		if (client->irq > 0) {
   661			rc = devm_request_threaded_irq(&client->dev, client->irq, NULL,
   662						       isl1208_rtc_interrupt,
   663						       IRQF_SHARED | IRQF_ONESHOT,
   664						       isl1208_driver.driver.name,
   665						       client);
   666			if (!rc) {
   667				device_init_wakeup(&client->dev, 1);
   668				enable_irq_wake(client->irq);
   669			} else {
   670				dev_err(&client->dev,
   671					"Unable to request irq %d, no alarm support\n",
   672					client->irq);
   673				client->irq = 0;
   674			}
   675		}
   676	
 > 677		return rtc_register_device(isl1208->rtc);
 > 678	}
   679	

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