Hi Chuhong, Thank you for the patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v5.7 next-20200603] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Chuhong-Yuan/media-omap3isp-Add-missed-v4l2_ctrl_handler_free-for-preview_init_entities/20200603-200044 base: git://linuxtv.org/media_tree.git master config: x86_64-allyesconfig (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 16437992cac249f6fe1efd392d20e3469b47e39e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>, old ones prefixed by <<): >> drivers/media/platform/omap3isp/isppreview.c:2323:1: warning: unused label 'error_handler_free' [-Wunused-label] error_handler_free: ^~~~~~~~~~~~~~~~~~~ >> drivers/media/platform/omap3isp/isppreview.c:2290:8: error: use of undeclared label 'err_handler_free' goto err_handler_free; ^ 1 warning and 1 error generated. vim +/err_handler_free +2290 drivers/media/platform/omap3isp/isppreview.c 2247 2248 /* ----------------------------------------------------------------------------- 2249 * ISP previewer initialisation and cleanup 2250 */ 2251 2252 /* 2253 * preview_init_entities - Initialize subdev and media entity. 2254 * @prev : Pointer to preview structure 2255 * return -ENOMEM or zero on success 2256 */ 2257 static int preview_init_entities(struct isp_prev_device *prev) 2258 { 2259 struct v4l2_subdev *sd = &prev->subdev; 2260 struct media_pad *pads = prev->pads; 2261 struct media_entity *me = &sd->entity; 2262 int ret; 2263 2264 prev->input = PREVIEW_INPUT_NONE; 2265 2266 v4l2_subdev_init(sd, &preview_v4l2_ops); 2267 sd->internal_ops = &preview_v4l2_internal_ops; 2268 strscpy(sd->name, "OMAP3 ISP preview", sizeof(sd->name)); 2269 sd->grp_id = 1 << 16; /* group ID for isp subdevs */ 2270 v4l2_set_subdevdata(sd, prev); 2271 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 2272 2273 v4l2_ctrl_handler_init(&prev->ctrls, 2); 2274 v4l2_ctrl_new_std(&prev->ctrls, &preview_ctrl_ops, V4L2_CID_BRIGHTNESS, 2275 ISPPRV_BRIGHT_LOW, ISPPRV_BRIGHT_HIGH, 2276 ISPPRV_BRIGHT_STEP, ISPPRV_BRIGHT_DEF); 2277 v4l2_ctrl_new_std(&prev->ctrls, &preview_ctrl_ops, V4L2_CID_CONTRAST, 2278 ISPPRV_CONTRAST_LOW, ISPPRV_CONTRAST_HIGH, 2279 ISPPRV_CONTRAST_STEP, ISPPRV_CONTRAST_DEF); 2280 v4l2_ctrl_handler_setup(&prev->ctrls); 2281 sd->ctrl_handler = &prev->ctrls; 2282 2283 pads[PREV_PAD_SINK].flags = MEDIA_PAD_FL_SINK 2284 | MEDIA_PAD_FL_MUST_CONNECT; 2285 pads[PREV_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; 2286 2287 me->ops = &preview_media_ops; 2288 ret = media_entity_pads_init(me, PREV_PADS_NUM, pads); 2289 if (ret < 0) > 2290 goto err_handler_free; 2291 2292 preview_init_formats(sd, NULL); 2293 2294 /* According to the OMAP34xx TRM, video buffers need to be aligned on a 2295 * 32 bytes boundary. However, an undocumented hardware bug requires a 2296 * 64 bytes boundary at the preview engine input. 2297 */ 2298 prev->video_in.type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 2299 prev->video_in.ops = &preview_video_ops; 2300 prev->video_in.isp = to_isp_device(prev); 2301 prev->video_in.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3; 2302 prev->video_in.bpl_alignment = 64; 2303 prev->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 2304 prev->video_out.ops = &preview_video_ops; 2305 prev->video_out.isp = to_isp_device(prev); 2306 prev->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3; 2307 prev->video_out.bpl_alignment = 32; 2308 2309 ret = omap3isp_video_init(&prev->video_in, "preview"); 2310 if (ret < 0) 2311 goto error_video_in; 2312 2313 ret = omap3isp_video_init(&prev->video_out, "preview"); 2314 if (ret < 0) 2315 goto error_video_out; 2316 2317 return 0; 2318 2319 error_video_out: 2320 omap3isp_video_cleanup(&prev->video_in); 2321 error_video_in: 2322 media_entity_cleanup(&prev->subdev.entity); > 2323 error_handler_free: 2324 v4l2_ctrl_handler_free(&prev->ctrls); 2325 return ret; 2326 } 2327 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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