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Wed, 20 May 2026 23:37:53 -0700 (PDT) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45eaa7dd9e6sm299931f8f.16.2026.05.20.23.37.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2026 23:37:52 -0700 (PDT) Date: Thu, 21 May 2026 09:37:49 +0300 From: Dan Carpenter To: oe-kbuild@lists.linux.dev, Steffen Trumtrar Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev, linux-leds@vger.kernel.org, Lee Jones Subject: [lee-leds:for-leds-next 12/17] drivers/leds/rgb/leds-lp5860-core.c:119 lp5860_iterate_subleds() warn: passing zero to 'dev_err_probe' Message-ID: <202605210624.3gcr3prk-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-leds@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/lee/leds.git for-leds-next head: 25025253476a64c186592d952c27f24bc3490e42 commit: 3daf2c4ef82b30d4cb017508f6857438ca44da41 [12/17] leds: Add support for TI LP5860 LED driver chip config: x86_64-randconfig-161-20260521 (https://download.01.org/0day-ci/archive/20260521/202605210624.3gcr3prk-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 smatch: v0.5.0-9185-gbcc58b9c If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202605210624.3gcr3prk-lkp@intel.com/ smatch warnings: drivers/leds/rgb/leds-lp5860-core.c:119 lp5860_iterate_subleds() warn: passing zero to 'dev_err_probe' vim +/dev_err_probe +119 drivers/leds/rgb/leds-lp5860-core.c 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 97 static int lp5860_iterate_subleds(struct lp5860_led *led, struct led_init_data *init_data) 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 98 { 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 99 struct fwnode_handle *led_node = NULL; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 100 struct fwnode_handle *multi_led = init_data->fwnode; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 101 int subled = 0; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 102 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 103 fwnode_for_each_child_node(multi_led, led_node) { 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 104 u32 channel; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 105 u32 color_index; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 106 int ret; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 107 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 108 ret = fwnode_property_read_u32(led_node, "color", &color_index); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 109 if (ret) { 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 110 dev_err_probe(led->chip->dev, ret, 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 111 "%pfwP: Cannot read 'color' property. Skipping.\n", led_node); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 112 fwnode_handle_put(led_node); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 113 return ret; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 114 } 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 115 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 116 ret = fwnode_property_read_u32(led_node, "reg", &channel); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 117 if (ret < 0 || channel > LP5860_MAX_LED) { 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 118 dev_err_probe(led->chip->dev, ret, 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 @119 "%pfwP: 'reg' property is missing. Skipping.\n", led_node); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 120 fwnode_handle_put(led_node); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 121 return ret; Need to set an error code if channel > LP5860_MAX_LED. 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 122 } 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 123 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 124 led->mc_cdev.subled_info[subled].color_index = color_index; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 125 led->mc_cdev.subled_info[subled].channel = channel; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 126 ret = lp5860_led_init(led, init_data->fwnode, channel); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 127 if (ret) { 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 128 dev_err_probe(led->chip->dev, ret, 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 129 "%pfwP: Failed to init LED\n", led_node); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 130 fwnode_handle_put(led_node); 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 131 return ret; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 132 } 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 133 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 134 subled++; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 135 } 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 136 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 137 return 0; 3daf2c4ef82b30d Steffen Trumtrar 2026-05-05 138 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki