:::::: :::::: Manual check reason: "low confidence bisect report" :::::: Manual check reason: "low confidence static check warning: drivers/media/i2c/hi847.c:2295:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]" ::::::
CC: [email protected] BCC: [email protected] CC: [email protected] TO: Shawn Tu <[email protected]> CC: Mauro Carvalho Chehab <[email protected]> CC: [email protected] CC: Sakari Ailus <[email protected]> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ca85855bdcae8f84f1512e88b4c75009ea17ea2f commit: da15b409ef4c56e9741deddb91798370802d1d02 media: hi847: Add support for Hi-847 sensor date: 6 months ago :::::: branch date: 2 days ago :::::: commit date: 6 months ago config: arm-randconfig-c002-20220718 (https://download.01.org/0day-ci/archive/20220721/[email protected]/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da15b409ef4c56e9741deddb91798370802d1d02 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout da15b409ef4c56e9741deddb91798370802d1d02 # save the config file ARCH=arm KBUILD_USERCFLAGS='-fanalyzer -Wno-error' If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <[email protected]> gcc-analyzer warnings: (new ones prefixed by >>) drivers/media/i2c/hi847.c: In function 'hi847_test_pattern': >> drivers/media/i2c/hi847.c:2295:13: warning: use of uninitialized value >> '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 2295 | u32 val; | ^~~ 'hi847_test_pattern': event 1 | | 2295 | u32 val; | | ^~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/media/i2c/hi847.c: In function 'hi847_set_ctrl_hflip': drivers/media/i2c/hi847.c:2375:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 2375 | u32 val; | ^~~ 'hi847_set_ctrl_hflip': event 1 | | 2375 | u32 val; | | ^~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/media/i2c/hi847.c: In function 'hi847_set_ctrl_vflip': drivers/media/i2c/hi847.c:2394:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 2394 | u32 val; | ^~~ 'hi847_set_ctrl_vflip': event 1 | | 2394 | u32 val; | | ^~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/media/i2c/hi847.c: In function 'hi847_identify_module': drivers/media/i2c/hi847.c:2822:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 2822 | u32 val; | ^~~ 'hi847_identify_module': event 1 | | 2822 | u32 val; | | ^~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/media/i2c/hi847.c: In function 'hi847_check_hwcfg': drivers/media/i2c/hi847.c:2845:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 2845 | u32 mclk; | ^~~~ 'hi847_check_hwcfg': event 1 | | 2845 | u32 mclk; | | ^~~~ | | | | | (1) use of uninitialized value '<unknown>' here | vim +2295 drivers/media/i2c/hi847.c da15b409ef4c56 Shawn Tu 2022-01-11 2291 da15b409ef4c56 Shawn Tu 2022-01-11 2292 static int hi847_test_pattern(struct hi847 *hi847, u32 pattern) da15b409ef4c56 Shawn Tu 2022-01-11 2293 { da15b409ef4c56 Shawn Tu 2022-01-11 2294 int ret; da15b409ef4c56 Shawn Tu 2022-01-11 @2295 u32 val; da15b409ef4c56 Shawn Tu 2022-01-11 2296 da15b409ef4c56 Shawn Tu 2022-01-11 2297 if (pattern) { da15b409ef4c56 Shawn Tu 2022-01-11 2298 ret = hi847_read_reg(hi847, HI847_REG_ISP, da15b409ef4c56 Shawn Tu 2022-01-11 2299 HI847_REG_VALUE_16BIT, &val); da15b409ef4c56 Shawn Tu 2022-01-11 2300 if (ret) da15b409ef4c56 Shawn Tu 2022-01-11 2301 return ret; da15b409ef4c56 Shawn Tu 2022-01-11 2302 da15b409ef4c56 Shawn Tu 2022-01-11 2303 ret = hi847_write_reg(hi847, HI847_REG_ISP, da15b409ef4c56 Shawn Tu 2022-01-11 2304 HI847_REG_VALUE_16BIT, da15b409ef4c56 Shawn Tu 2022-01-11 2305 val | HI847_REG_ISP_TPG_EN); da15b409ef4c56 Shawn Tu 2022-01-11 2306 if (ret) da15b409ef4c56 Shawn Tu 2022-01-11 2307 return ret; da15b409ef4c56 Shawn Tu 2022-01-11 2308 } da15b409ef4c56 Shawn Tu 2022-01-11 2309 da15b409ef4c56 Shawn Tu 2022-01-11 2310 ret = hi847_read_reg(hi847, HI847_REG_TEST_PATTERN, da15b409ef4c56 Shawn Tu 2022-01-11 2311 HI847_REG_VALUE_16BIT, &val); da15b409ef4c56 Shawn Tu 2022-01-11 2312 if (ret) da15b409ef4c56 Shawn Tu 2022-01-11 2313 return ret; da15b409ef4c56 Shawn Tu 2022-01-11 2314 da15b409ef4c56 Shawn Tu 2022-01-11 2315 return hi847_write_reg(hi847, HI847_REG_TEST_PATTERN, da15b409ef4c56 Shawn Tu 2022-01-11 2316 HI847_REG_VALUE_16BIT, val | pattern << 8); da15b409ef4c56 Shawn Tu 2022-01-11 2317 } da15b409ef4c56 Shawn Tu 2022-01-11 2318 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
