netdev - Re: [PATCH] net: atlantic: fix potential memory leak in aq_ndev

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Date:   Tue, 13 Sep 2022 18:25:10 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jianglei Nie <niejianglei2021@....com>, irusskikh@...vell.com,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jianglei Nie <niejianglei2021@....com>
Subject: Re: [PATCH] net: atlantic: fix potential memory leak in
 aq_ndev_close()

Hi Jianglei,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]
[also build test WARNING on net/master linus/master v6.0-rc5 next-20220912]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Jianglei-Nie/net-atlantic-fix-potential-memory-leak-in-aq_ndev_close/20220913-144300
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 169ccf0e40825d9e465863e4707d8e8546d3c3cb
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220913/202209131828.hYRSPYF2-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/e1ce8c41446db3a7dd59206ff9c8a75baf7be067
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jianglei-Nie/net-atlantic-fix-potential-memory-leak-in-aq_ndev_close/20220913-144300
        git checkout e1ce8c41446db3a7dd59206ff9c8a75baf7be067
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/aquantia/atlantic/aq_main.c: In function 'aq_ndev_close':
>> drivers/net/ethernet/aquantia/atlantic/aq_main.c:99:1: warning: label 'err_exit' defined but not used [-Wunused-label]
      99 | err_exit:
         | ^~~~~~~~


vim +/err_exit +99 drivers/net/ethernet/aquantia/atlantic/aq_main.c

97bde5c4f909a5 David VomLehn  2017-01-23   90  
97bde5c4f909a5 David VomLehn  2017-01-23   91  static int aq_ndev_close(struct net_device *ndev)
97bde5c4f909a5 David VomLehn  2017-01-23   92  {
97bde5c4f909a5 David VomLehn  2017-01-23   93  	struct aq_nic_s *aq_nic = netdev_priv(ndev);
7b0c342f1f6754 Nikita Danilov 2019-11-07   94  	int err = 0;
97bde5c4f909a5 David VomLehn  2017-01-23   95  
97bde5c4f909a5 David VomLehn  2017-01-23   96  	err = aq_nic_stop(aq_nic);
837c637869bef2 Nikita Danilov 2019-11-07   97  	aq_nic_deinit(aq_nic, true);
97bde5c4f909a5 David VomLehn  2017-01-23   98  
97bde5c4f909a5 David VomLehn  2017-01-23  @99  err_exit:
97bde5c4f909a5 David VomLehn  2017-01-23  100  	return err;
97bde5c4f909a5 David VomLehn  2017-01-23  101  }
97bde5c4f909a5 David VomLehn  2017-01-23  102  

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