Hi Khazhismel,

[auto build test ERROR on mkp-scsi/for-next]
[also build test ERROR on v4.12 next-20170713]
[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/Khazhismel-Kumykov/libiscsi-Fix-use-after-free-race-during-iscsi_session_teardown/20170713-231300
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
config: i386-randconfig-x018-201728 (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=i386 

All errors (new ones prefixed by >>):

   drivers//scsi/libiscsi.c: In function 'iscsi_session_teardown':
>> drivers//scsi/libiscsi.c:2863:23: error: passing argument 1 of 
>> 'iscsi_remove_session' from incompatible pointer type 
>> [-Werror=incompatible-pointer-types]
     iscsi_remove_session(session);
                          ^~~~~~~
   In file included from drivers//scsi/libiscsi.c:41:0:
   include/scsi/scsi_transport_iscsi.h:435:13: note: expected 'struct 
iscsi_cls_session *' but argument is of type 'struct iscsi_session *'
    extern void iscsi_remove_session(struct iscsi_cls_session *session);
                ^~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/iscsi_remove_session +2863 drivers//scsi/libiscsi.c

  2850  
  2851  /**
  2852   * iscsi_session_teardown - destroy session, host, and cls_session
  2853   * @cls_session: iscsi session
  2854   */
  2855  void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
  2856  {
  2857          struct iscsi_session *session = cls_session->dd_data;
  2858          struct module *owner = cls_session->transport->owner;
  2859          struct Scsi_Host *shost = session->host;
  2860  
  2861          iscsi_pool_free(&session->cmdpool);
  2862  
> 2863          iscsi_remove_session(session);
  2864  
  2865          kfree(session->password);
  2866          kfree(session->password_in);
  2867          kfree(session->username);
  2868          kfree(session->username_in);
  2869          kfree(session->targetname);
  2870          kfree(session->targetalias);
  2871          kfree(session->initiatorname);
  2872          kfree(session->boot_root);
  2873          kfree(session->boot_nic);
  2874          kfree(session->boot_target);
  2875          kfree(session->ifacename);
  2876          kfree(session->portal_type);
  2877          kfree(session->discovery_parent_type);
  2878  
  2879          iscsi_free_session(cls_session);
  2880  
  2881          iscsi_host_dec_session_cnt(shost);
  2882          module_put(owner);
  2883  }
  2884  EXPORT_SYMBOL_GPL(iscsi_session_teardown);
  2885  

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

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