Hi Sean,

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on next-20161028]
[cannot apply to v4.9-rc3]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for 
convenience) to record what (public, well-known) commit your patch series was 
built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    
https://github.com/0day-ci/linux/commits/Sean-Young/Various-IR-fixes/20161101-023658
base:   git://linuxtv.org/media_tree.git master
config: x86_64-randconfig-x014-201644 (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 warnings (new ones prefixed by >>):

   drivers/media/rc/redrat3.c: In function 'redrat3_learn_complete':
>> drivers/media/rc/redrat3.c:903:6: warning: unused variable 'ret' 
>> [-Wunused-variable]
     int ret;
         ^~~

vim +/ret +903 drivers/media/rc/redrat3.c

   887  
   888          rr3->wideband = enable != 0;
   889  
   890          if (enable) {
   891                  ret = usb_submit_urb(rr3->learn_urb, GFP_KERNEL);
   892                  if (ret)
   893                          dev_err(rr3->dev, "Failed to submit learning 
urb: %d",
   894                                                                          
ret);
   895          }
   896  
   897          return ret;
   898  }
   899  
   900  static void redrat3_learn_complete(struct urb *urb)
   901  {
   902          struct redrat3_dev *rr3 = urb->context;
 > 903          int ret;
   904  
   905          switch (urb->status) {
   906          case 0:
   907                  break;
   908          case -ECONNRESET:
   909          case -ENOENT:
   910          case -ESHUTDOWN:
   911                  usb_unlink_urb(urb);

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

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