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Date:	Sun, 18 Oct 2015 22:24:20 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Gao feng <omarapazanadi@...il.com>
Cc:	kbuild-all@...org, netdev@...r.kernel.org,
	Gao feng <omarapazanadi@...il.com>
Subject: Re: [PATCH] vsock: fix missing cleanup when misc_register failed

Hi Gao,

[auto build test ERROR on net/master -- if it's inappropriate base, please suggest rules for selecting the more suitable base]

url:    https://github.com/0day-ci/linux/commits/Gao-feng/vsock-fix-missing-cleanup-when-misc_register-failed/20151018-215542
config: x86_64-rhel (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

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

   net/vmw_vsock/af_vsock.c: In function '__vsock_core_init':
>> net/vmw_vsock/af_vsock.c:1972:1: warning: label 'err_unregister_misc' defined but not used [-Wunused-label]
    err_unregister_misc:
    ^
>> net/vmw_vsock/af_vsock.c:1957:3: error: label 'err_misc_deregister' used but not defined
      goto err_misc_deregister;
      ^

vim +/err_misc_deregister +1957 net/vmw_vsock/af_vsock.c

1ef231d1 Gao feng  2015-10-18  1951  		goto err_reset_transport;
d021c344 Andy King 2013-02-06  1952  	}
d021c344 Andy King 2013-02-06  1953  
d021c344 Andy King 2013-02-06  1954  	err = proto_register(&vsock_proto, 1);	/* we want our slab */
d021c344 Andy King 2013-02-06  1955  	if (err) {
d021c344 Andy King 2013-02-06  1956  		pr_err("Cannot register vsock protocol\n");
d021c344 Andy King 2013-02-06 @1957  		goto err_misc_deregister;
d021c344 Andy King 2013-02-06  1958  	}
d021c344 Andy King 2013-02-06  1959  
d021c344 Andy King 2013-02-06  1960  	err = sock_register(&vsock_family_ops);
d021c344 Andy King 2013-02-06  1961  	if (err) {
d021c344 Andy King 2013-02-06  1962  		pr_err("could not register af_vsock (%d) address family: %d\n",
d021c344 Andy King 2013-02-06  1963  		       AF_VSOCK, err);
d021c344 Andy King 2013-02-06  1964  		goto err_unregister_proto;
d021c344 Andy King 2013-02-06  1965  	}
d021c344 Andy King 2013-02-06  1966  
2c4a336e Andy King 2014-05-01  1967  	mutex_unlock(&vsock_register_mutex);
d021c344 Andy King 2013-02-06  1968  	return 0;
d021c344 Andy King 2013-02-06  1969  
d021c344 Andy King 2013-02-06  1970  err_unregister_proto:
d021c344 Andy King 2013-02-06  1971  	proto_unregister(&vsock_proto);
1ef231d1 Gao feng  2015-10-18 @1972  err_unregister_misc:
d021c344 Andy King 2013-02-06  1973  	misc_deregister(&vsock_device);
1ef231d1 Gao feng  2015-10-18  1974  err_reset_transport:
d021c344 Andy King 2013-02-06  1975  	transport = NULL;

:::::: The code at line 1957 was first introduced by commit
:::::: d021c344051af91f42c5ba9fdedc176740cbd238 VSOCK: Introduce VM Sockets

:::::: TO: Andy King <acking@...are.com>
:::::: CC: David S. Miller <davem@...emloft.net>

---
0-DAY kernel test infrastructure                Open Source Technology Center
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