Hi Guennadi, [auto build test WARNING on linuxtv-media/master] [also build test WARNING on v4.13-rc2 next-20170728] [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/Guennadi-Liakhovetski/UVC-fix-queue_setup-to-check-the-number-of-planes/20170730-123108 base: git://linuxtv.org/media_tree.git master coccinelle warnings: (new ones prefixed by >>) >> drivers/media/usb/uvc/uvc_ctrl.c:1327:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. Please review and possibly fold the followup patch. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation