Re: [PATCH v2] isdn: eicon: fix a missing-check bug

[kbuild test robot]

Hi Wenwen,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.17-rc5 next-20180517]
[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/Wenwen-Wang/isdn-eicon-fix-a-missing-check-bug/20180521-034229
config: i386-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

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

   In file included from drivers/isdn/hardware/eicon/divasfunc.c:18:0:
>> drivers/isdn/hardware/eicon/diva.h:23:18: error: unknown type name 'diva_xdi_um_cfg_cmd_t'; did you mean 'diva_xdi_capi_cfg_t'?
         int length, diva_xdi_um_cfg_cmd_t *msg,
                     ^~~~~~~~~~~~~~~~~~~~~
                     diva_xdi_capi_cfg_t
   drivers/isdn/hardware/eicon/diva.h:27:20: error: unknown type name 'diva_xdi_um_cfg_cmd_t'; did you mean 'diva_xdi_capi_cfg_t'?
           int length, diva_xdi_um_cfg_cmd_t *msg,
                       ^~~~~~~~~~~~~~~~~~~~~
                       diva_xdi_capi_cfg_t
--
   In file included from drivers/isdn/hardware/eicon/divasmain.c:30:0:
>> drivers/isdn/hardware/eicon/diva.h:23:18: error: unknown type name 'diva_xdi_um_cfg_cmd_t'
         int length, diva_xdi_um_cfg_cmd_t *msg,
                     ^~~~~~~~~~~~~~~~~~~~~
   drivers/isdn/hardware/eicon/diva.h:27:20: error: unknown type name 'diva_xdi_um_cfg_cmd_t'
           int length, diva_xdi_um_cfg_cmd_t *msg,
                       ^~~~~~~~~~~~~~~~~~~~~
   drivers/isdn/hardware/eicon/divasmain.c: In function 'divas_write':
>> drivers/isdn/hardware/eicon/divasmain.c:598:24: error: implicit declaration of function 'diva_xdi_open_adapter'; did you mean 'diva_xdi_close_adapter'? [-Werror=implicit-function-declaration]
      file->private_data = diva_xdi_open_adapter(file, buf,
                           ^~~~~~~~~~~~~~~~~~~~~
                           diva_xdi_close_adapter
>> drivers/isdn/hardware/eicon/divasmain.c:598:22: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      file->private_data = diva_xdi_open_adapter(file, buf,
                         ^
>> drivers/isdn/hardware/eicon/divasmain.c:603:9: error: implicit declaration of function 'diva_xdi_write'; did you mean 'divas_write'? [-Werror=implicit-function-declaration]
      ret = diva_xdi_write(file->private_data, file,
            ^~~~~~~~~~~~~~
            divas_write
   drivers/isdn/hardware/eicon/divasmain.c: In function 'divas_read':
   drivers/isdn/hardware/eicon/divasmain.c:632:22: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      file->private_data = diva_xdi_open_adapter(file, buf,
                         ^
   cc1: some warnings being treated as errors

vim +23 drivers/isdn/hardware/eicon/diva.h

    12	
    13	typedef int (*divas_xdi_copy_to_user_fn_t) (void *os_handle, void __user *dst,
    14						    const void *src, int length);
    15	
    16	typedef int (*divas_xdi_copy_from_user_fn_t) (void *os_handle, void *dst,
    17						      const void __user *src, int length);
    18	
    19	int diva_xdi_read(void *adapter, void *os_handle, void __user *dst,
    20			  int max_length, divas_xdi_copy_to_user_fn_t cp_fn);
    21	
    22	int diva_xdi_write(void *adapter, void *os_handle, const void __user *src,
  > 23			   int length, diva_xdi_um_cfg_cmd_t *msg,
    24			   divas_xdi_copy_from_user_fn_t cp_fn);
    25	

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