linux-kernel - Re: [PATCH v2] block/floppy.c: handle blk_register

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Message-ID: <201511101650.VVaeI6lk%fengguang.wu@intel.com>
Date:	Tue, 10 Nov 2015 16:20:39 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Vishnu Pratap Singh <vishnu.ps@...sung.com>
Cc:	kbuild-all@...org, axboe@...nel.dk, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, jmoyer@...hat.com,
	minchan@...nel.org, ngupta@...are.org,
	sergey.senozhatsky.work@...il.com, davem@...emloft.net,
	neilb@...e.com, ulf.hansson@...aro.org, tiwai@...e.de,
	hare@...e.de, ming.lei@...onical.com, jarod@...hat.com,
	viro@...iv.linux.org.uk, tj@...nel.org, adrian.hunter@...el.com,
	jonathanh@...dia.com, grundler@...omium.org,
	linux-ide@...r.kernel.org, cpgs@...sung.com, vishu13285@...il.com,
	pintu.k@...sung.com, rohit.kr@...sung.com,
	Vishnu Pratap Singh <vishnu.ps@...sung.com>
Subject: Re: [PATCH v2] block/floppy.c: handle blk_register_region() return
 value

Hi Vishnu,

[auto build test ERROR on block/for-next]
[also build test ERROR on v4.3 next-20151110]

url:    https://github.com/0day-ci/linux/commits/Vishnu-Pratap-Singh/block-floppy-c-handle-blk_register_region-return-value/20151110-112959
base:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next
config: x86_64-rhel (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/block/floppy.c: In function 'do_floppy_init':
>> drivers/block/floppy.c:4222:6: error: void value not ignored as it ought to be
     err = blk_register_region(MKDEV(FLOPPY_MAJOR, 0), 256, THIS_MODULE,
         ^

vim +4222 drivers/block/floppy.c

  4216			goto out_put_disk;
  4217	
  4218		err = platform_driver_register(&floppy_driver);
  4219		if (err)
  4220			goto out_unreg_blkdev;
  4221	
> 4222		err = blk_register_region(MKDEV(FLOPPY_MAJOR, 0), 256, THIS_MODULE,
  4223				    floppy_find, NULL, NULL);
  4224		if (err)
  4225			goto out_driver_unregister;

---
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