CC: [email protected] CC: [email protected] CC: [email protected] TO: Bard Liao <[email protected]> CC: Mark Brown <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 614cb2751d3150850d459bee596c397f344a7936 commit: 349dd23931d1943b1083182e35715eba8b150fe1 ASoC: max98373: don't access volatile registers in bias level off date: 8 months ago :::::: branch date: 6 hours ago :::::: commit date: 8 months ago config: arm-randconfig-c002-20210816 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 44d0a99a12ec7ead4d2f5ef649ba05b40f6d463d) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=349dd23931d1943b1083182e35715eba8b150fe1 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 349dd23931d1943b1083182e35715eba8b150fe1 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/bus/mhi/core/boot.c:140:2: note: Value stored to 'ret' is never read ret = mhi_read_reg(mhi_cntrl, base, BHIE_RXVECSTATUS_OFFS, &rx_status); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/bus/mhi/core/boot.c:153:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = &mhi_cntrl->mhi_dev->dev; ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/bus/mhi/core/boot.c:153:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = &mhi_cntrl->mhi_dev->dev; ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/bus/mhi/core/boot.c:178:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = &mhi_cntrl->mhi_dev->dev; ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/bus/mhi/core/boot.c:178:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = &mhi_cntrl->mhi_dev->dev; ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. drivers/base/regmap/regcache.c:137:7: warning: Dereference of null pointer [clang-analyzer-core.NullDereference] if (config->reg_defaults[i].reg % map->reg_stride) ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/base/regmap/regcache.c:121:6: note: Assuming field 'cache_type' is not equal to REGCACHE_NONE if (map->cache_type == REGCACHE_NONE) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/base/regmap/regcache.c:121:2: note: Taking false branch if (map->cache_type == REGCACHE_NONE) { ^ drivers/base/regmap/regcache.c:130:6: note: Assuming field 'reg_defaults' is null if (config->reg_defaults && !config->num_reg_defaults) { ^~~~~~~~~~~~~~~~~~~~ drivers/base/regmap/regcache.c:130:27: note: Left side of '&&' is false if (config->reg_defaults && !config->num_reg_defaults) { ^ drivers/base/regmap/regcache.c:136:14: note: Assuming 'i' is < field 'num_reg_defaults' for (i = 0; i < config->num_reg_defaults; i++) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/base/regmap/regcache.c:136:2: note: Loop condition is true. Entering loop body for (i = 0; i < config->num_reg_defaults; i++) ^ drivers/base/regmap/regcache.c:137:7: note: Dereference of null pointer if (config->reg_defaults[i].reg % map->reg_stride) ^~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (2 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. >> sound/soc/codecs/max98373-sdw.c:789:26: warning: Assigned value is garbage >> or undefined [clang-analyzer-core.uninitialized.Assign] max98373->cache[i].reg = max98373_sdw_cache_reg[i]; ^ sound/soc/codecs/max98373-sdw.c:854:2: note: Taking false branch if (IS_ERR(regmap)) ^ sound/soc/codecs/max98373-sdw.c:857:9: note: Calling 'max98373_init' return max98373_init(slave, regmap); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ sound/soc/codecs/max98373-sdw.c:776:6: note: Assuming 'max98373' is non-null if (!max98373) ^~~~~~~~~ sound/soc/codecs/max98373-sdw.c:776:2: note: Taking false branch if (!max98373) ^ sound/soc/codecs/max98373-sdw.c:788:14: note: Assuming 'i' is < field 'cache_num' for (i = 0; i < max98373->cache_num; i++) ^~~~~~~~~~~~~~~~~~~~~~~ sound/soc/codecs/max98373-sdw.c:788:2: note: Loop condition is true. Entering loop body for (i = 0; i < max98373->cache_num; i++) ^ sound/soc/codecs/max98373-sdw.c:788:14: note: Assuming 'i' is < field 'cache_num' for (i = 0; i < max98373->cache_num; i++) ^~~~~~~~~~~~~~~~~~~~~~~ sound/soc/codecs/max98373-sdw.c:788:2: note: Loop condition is true. Entering loop body for (i = 0; i < max98373->cache_num; i++) ^ sound/soc/codecs/max98373-sdw.c:788:14: note: Assuming 'i' is < field 'cache_num' for (i = 0; i < max98373->cache_num; i++) ^~~~~~~~~~~~~~~~~~~~~~~ sound/soc/codecs/max98373-sdw.c:788:2: note: Loop condition is true. Entering loop body for (i = 0; i < max98373->cache_num; i++) ^ sound/soc/codecs/max98373-sdw.c:788:39: note: The value 3 is assigned to 'i' for (i = 0; i < max98373->cache_num; i++) ^~~ sound/soc/codecs/max98373-sdw.c:788:14: note: Assuming 'i' is < field 'cache_num' for (i = 0; i < max98373->cache_num; i++) ^~~~~~~~~~~~~~~~~~~~~~~ sound/soc/codecs/max98373-sdw.c:788:2: note: Loop condition is true. Entering loop body for (i = 0; i < max98373->cache_num; i++) ^ sound/soc/codecs/max98373-sdw.c:789:26: note: Assigned value is garbage or undefined max98373->cache[i].reg = max98373_sdw_cache_reg[i]; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. drivers/rpmsg/qcom_glink_native.c:432:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy] strcpy(req.name, channel->name); ^~~~~~ drivers/rpmsg/qcom_glink_native.c:432:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 strcpy(req.name, channel->name); ^~~~~~ Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (3 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. drivers/soundwire/qcom.c:773:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = of_property_read_u8_array(np, "qcom,ports-block-pack-mode", ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/soundwire/qcom.c:773:2: note: Value stored to 'ret' is never read ret = of_property_read_u8_array(np, "qcom,ports-block-pack-mode", ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. vim +789 sound/soc/codecs/max98373-sdw.c 56a5b7910e965c Ryan Lee 2020-07-08 766 56a5b7910e965c Ryan Lee 2020-07-08 767 static int max98373_init(struct sdw_slave *slave, struct regmap *regmap) 56a5b7910e965c Ryan Lee 2020-07-08 768 { 56a5b7910e965c Ryan Lee 2020-07-08 769 struct max98373_priv *max98373; 56a5b7910e965c Ryan Lee 2020-07-08 770 int ret; 349dd23931d194 Bard Liao 2020-12-17 771 int i; 56a5b7910e965c Ryan Lee 2020-07-08 772 struct device *dev = &slave->dev; 56a5b7910e965c Ryan Lee 2020-07-08 773 56a5b7910e965c Ryan Lee 2020-07-08 774 /* Allocate and assign private driver data structure */ 56a5b7910e965c Ryan Lee 2020-07-08 775 max98373 = devm_kzalloc(dev, sizeof(*max98373), GFP_KERNEL); 56a5b7910e965c Ryan Lee 2020-07-08 776 if (!max98373) 56a5b7910e965c Ryan Lee 2020-07-08 777 return -ENOMEM; 56a5b7910e965c Ryan Lee 2020-07-08 778 56a5b7910e965c Ryan Lee 2020-07-08 779 dev_set_drvdata(dev, max98373); 56a5b7910e965c Ryan Lee 2020-07-08 780 max98373->regmap = regmap; 56a5b7910e965c Ryan Lee 2020-07-08 781 max98373->slave = slave; 56a5b7910e965c Ryan Lee 2020-07-08 782 349dd23931d194 Bard Liao 2020-12-17 783 max98373->cache_num = ARRAY_SIZE(max98373_sdw_cache_reg); 349dd23931d194 Bard Liao 2020-12-17 784 max98373->cache = devm_kcalloc(dev, max98373->cache_num, 349dd23931d194 Bard Liao 2020-12-17 785 sizeof(*max98373->cache), 349dd23931d194 Bard Liao 2020-12-17 786 GFP_KERNEL); 349dd23931d194 Bard Liao 2020-12-17 787 349dd23931d194 Bard Liao 2020-12-17 788 for (i = 0; i < max98373->cache_num; i++) 349dd23931d194 Bard Liao 2020-12-17 @789 max98373->cache[i].reg = max98373_sdw_cache_reg[i]; 349dd23931d194 Bard Liao 2020-12-17 790 56a5b7910e965c Ryan Lee 2020-07-08 791 /* Read voltage and slot configuration */ 56a5b7910e965c Ryan Lee 2020-07-08 792 max98373_slot_config(dev, max98373); 56a5b7910e965c Ryan Lee 2020-07-08 793 56a5b7910e965c Ryan Lee 2020-07-08 794 max98373->hw_init = false; 56a5b7910e965c Ryan Lee 2020-07-08 795 max98373->pm_init_once = false; 56a5b7910e965c Ryan Lee 2020-07-08 796 56a5b7910e965c Ryan Lee 2020-07-08 797 /* codec registration */ 56a5b7910e965c Ryan Lee 2020-07-08 798 ret = devm_snd_soc_register_component(dev, &soc_codec_dev_max98373_sdw, 56a5b7910e965c Ryan Lee 2020-07-08 799 max98373_sdw_dai, 56a5b7910e965c Ryan Lee 2020-07-08 800 ARRAY_SIZE(max98373_sdw_dai)); 56a5b7910e965c Ryan Lee 2020-07-08 801 if (ret < 0) 56a5b7910e965c Ryan Lee 2020-07-08 802 dev_err(dev, "Failed to register codec: %d\n", ret); 56a5b7910e965c Ryan Lee 2020-07-08 803 56a5b7910e965c Ryan Lee 2020-07-08 804 return ret; 56a5b7910e965c Ryan Lee 2020-07-08 805 } 56a5b7910e965c Ryan Lee 2020-07-08 806 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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