Hi Yizhuo, Thank you for the patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [cannot apply to v5.3-rc5 next-20190822] [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/Yizhuo/pvrusb2-qctrl-flag-will-be-uninitlaized-if-cx2341x_ctrl_query-returns-error-code/20190823-075303 base: git://linuxtv.org/media_tree.git master config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=sh If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/media/usb/pvrusb2/pvrusb2-hdw.c: In function 'ctrl_cx2341x_getv4lflags': >> drivers/media/usb/pvrusb2/pvrusb2-hdw.c:790:10: error: 'qctr' undeclared (first use in this function); did you mean 'qctrl'? memset(&qctr, 0, sizeof(qctrl)) ^~~~ qctrl drivers/media/usb/pvrusb2/pvrusb2-hdw.c:790:10: note: each undeclared identifier is reported only once for each function it appears in >> drivers/media/usb/pvrusb2/pvrusb2-hdw.c:791:2: error: expected ';' before 'cx2341x_ctrl_query' cx2341x_ctrl_query(&cptr->hdw->enc_ctl_state,&qctrl); ^~~~~~~~~~~~~~~~~~ vim +790 drivers/media/usb/pvrusb2/pvrusb2-hdw.c 784 785 static unsigned int ctrl_cx2341x_getv4lflags(struct pvr2_ctrl *cptr) 786 { 787 struct v4l2_queryctrl qctrl; 788 struct pvr2_ctl_info *info; 789 qctrl.id = cptr->info->v4l_id; > 790 memset(&qctr, 0, sizeof(qctrl)) > 791 cx2341x_ctrl_query(&cptr->hdw->enc_ctl_state,&qctrl); 792 /* Strip out the const so we can adjust a function pointer. It's 793 OK to do this here because we know this is a dynamically created 794 control, so the underlying storage for the info pointer is (a) 795 private to us, and (b) not in read-only storage. Either we do 796 this or we significantly complicate the underlying control 797 implementation. */ 798 info = (struct pvr2_ctl_info *)(cptr->info); 799 if (qctrl.flags & V4L2_CTRL_FLAG_READ_ONLY) { 800 if (info->set_value) { 801 info->set_value = NULL; 802 } 803 } else { 804 if (!(info->set_value)) { 805 info->set_value = ctrl_cx2341x_set; 806 } 807 } 808 return qctrl.flags; 809 } 810 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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