Hi Tobias, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.9-rc6 next-20200925] [cannot apply to drm/drm-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Tobias-Jordan/drm-of-fix-leak-of-port_node/20200926-063854 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-randconfig-s001-20200925 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-201-g24bdaac6-dirty # https://github.com/0day-ci/linux/commit/9acba5320ef136e5d4a3b7563f4b5a362922c818 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Tobias-Jordan/drm-of-fix-leak-of-port_node/20200926-063854 git checkout 9acba5320ef136e5d4a3b7563f4b5a362922c818 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/drm_of.c:318:37: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected struct device_node *node @@ got struct device_node const *port_node @@ >> drivers/gpu/drm/drm_of.c:318:37: sparse: expected struct device_node *node >> drivers/gpu/drm/drm_of.c:318:37: sparse: got struct device_node const *port_node drivers/gpu/drm/drm_of.c:335:37: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected struct device_node *node @@ got struct device_node const *port_node @@ drivers/gpu/drm/drm_of.c:335:37: sparse: expected struct device_node *node drivers/gpu/drm/drm_of.c:335:37: sparse: got struct device_node const *port_node vim +318 drivers/gpu/drm/drm_of.c 302 303 static int drm_of_lvds_get_remote_pixels_type( 304 const struct device_node *port_node) 305 { 306 struct device_node *endpoint = NULL; 307 int pixels_type = -EPIPE; 308 309 for_each_child_of_node(port_node, endpoint) { 310 struct device_node *remote_port; 311 int current_pt; 312 313 if (!of_node_name_eq(endpoint, "endpoint")) 314 continue; 315 316 remote_port = of_graph_get_remote_port(endpoint); 317 if (!remote_port) { > 318 of_node_put(port_node); 319 return -EPIPE; 320 } 321 322 current_pt = drm_of_lvds_get_port_pixels_type(remote_port); 323 of_node_put(remote_port); 324 if (pixels_type < 0) 325 pixels_type = current_pt; 326 327 /* 328 * Sanity check, ensure that all remote endpoints have the same 329 * pixel type. We may lift this restriction later if we need to 330 * support multiple sinks with different dual-link 331 * configurations by passing the endpoints explicitly to 332 * drm_of_lvds_get_dual_link_pixel_order(). 333 */ 334 if (!current_pt || pixels_type != current_pt) { 335 of_node_put(port_node); 336 return -EINVAL; 337 } 338 } 339 340 return pixels_type; 341 } 342 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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