linux-kernel - Re: [PATCH v10] drm: Unplug drm device when unregistering it (v7)

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Date:   Thu, 13 Apr 2017 15:07:10 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Jeffy Chen <jeffy.chen@...k-chips.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        briannorris@...omium.org, dianders@...omium.org,
        tfiga@...omium.org, seanpaul@...omium.org, zyw@...k-chips.com,
        marcheu@...omium.org, mark.yao@...k-chips.com, hshi@...omium.org,
        Jeffy Chen <jeffy.chen@...k-chips.com>
Subject: Re: [PATCH v10] drm: Unplug drm device when unregistering it (v7)

Hi Jeffy,

[auto build test ERROR on drm/drm-next]
[also build test ERROR on v4.11-rc6 next-20170413]
[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/Jeffy-Chen/drm-Unplug-drm-device-when-unregistering-it-v7/20170413-130045
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: x86_64-randconfig-x012-201715 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/gpu//drm/udl/udl_drv.c: In function 'udl_usb_disconnect':
>> drivers/gpu//drm/udl/udl_drv.c:112:16: error: 'drm_dev' undeclared (first use in this function)
     drm_dev_unref(drm_dev);
                   ^~~~~~~
   drivers/gpu//drm/udl/udl_drv.c:112:16: note: each undeclared identifier is reported only once for each function it appears in

vim +/drm_dev +112 drivers/gpu//drm/udl/udl_drv.c

   106		struct drm_device *dev = usb_get_intfdata(interface);
   107	
   108		drm_kms_helper_poll_disable(dev);
   109		udl_fbdev_unplug(dev);
   110		udl_drop_usb(dev);
   111		drm_dev_unregister(dev);
 > 112		drm_dev_unref(drm_dev);
   113	}
   114	
   115	/*

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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