BCC: [email protected] CC: [email protected] CC: [email protected] TO: Russ Weight <[email protected]> CC: Xu Yilun <[email protected]> CC: Tom Rix <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 7e18e42e4b280c85b76967a9106a13ca61c16179 commit: 154afa5c31cd2de5e6c2c4f35eee390993ee345a fpga: m10bmc-sec: expose max10 flash update count date: 3 months ago :::::: branch date: 27 hours ago :::::: commit date: 3 months ago config: x86_64-randconfig-m031-20220905 (https://download.01.org/0day-ci/archive/20220906/[email protected]/config) compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: drivers/fpga/intel-m10-bmc-sec-update.c:103 flash_count_show() warn: possible memory leak of 'flash_buf' vim +/flash_buf +103 drivers/fpga/intel-m10-bmc-sec-update.c 154afa5c31cd2de Russ Weight 2022-06-06 82 154afa5c31cd2de Russ Weight 2022-06-06 83 static ssize_t flash_count_show(struct device *dev, 154afa5c31cd2de Russ Weight 2022-06-06 84 struct device_attribute *attr, char *buf) 154afa5c31cd2de Russ Weight 2022-06-06 85 { 154afa5c31cd2de Russ Weight 2022-06-06 86 struct m10bmc_sec *sec = dev_get_drvdata(dev); 154afa5c31cd2de Russ Weight 2022-06-06 87 unsigned int stride, num_bits; 154afa5c31cd2de Russ Weight 2022-06-06 88 u8 *flash_buf; 154afa5c31cd2de Russ Weight 2022-06-06 89 int cnt, ret; 154afa5c31cd2de Russ Weight 2022-06-06 90 154afa5c31cd2de Russ Weight 2022-06-06 91 stride = regmap_get_reg_stride(sec->m10bmc->regmap); 154afa5c31cd2de Russ Weight 2022-06-06 92 num_bits = FLASH_COUNT_SIZE * 8; 154afa5c31cd2de Russ Weight 2022-06-06 93 154afa5c31cd2de Russ Weight 2022-06-06 94 flash_buf = kmalloc(FLASH_COUNT_SIZE, GFP_KERNEL); 154afa5c31cd2de Russ Weight 2022-06-06 95 if (!flash_buf) 154afa5c31cd2de Russ Weight 2022-06-06 96 return -ENOMEM; 154afa5c31cd2de Russ Weight 2022-06-06 97 154afa5c31cd2de Russ Weight 2022-06-06 98 if (FLASH_COUNT_SIZE % stride) { 154afa5c31cd2de Russ Weight 2022-06-06 99 dev_err(sec->dev, 154afa5c31cd2de Russ Weight 2022-06-06 100 "FLASH_COUNT_SIZE (0x%x) not aligned to stride (0x%x)\n", 154afa5c31cd2de Russ Weight 2022-06-06 101 FLASH_COUNT_SIZE, stride); 154afa5c31cd2de Russ Weight 2022-06-06 102 WARN_ON_ONCE(1); 154afa5c31cd2de Russ Weight 2022-06-06 @103 return -EINVAL; 154afa5c31cd2de Russ Weight 2022-06-06 104 } 154afa5c31cd2de Russ Weight 2022-06-06 105 154afa5c31cd2de Russ Weight 2022-06-06 106 ret = regmap_bulk_read(sec->m10bmc->regmap, STAGING_FLASH_COUNT, 154afa5c31cd2de Russ Weight 2022-06-06 107 flash_buf, FLASH_COUNT_SIZE / stride); 154afa5c31cd2de Russ Weight 2022-06-06 108 if (ret) { 154afa5c31cd2de Russ Weight 2022-06-06 109 dev_err(sec->dev, 154afa5c31cd2de Russ Weight 2022-06-06 110 "failed to read flash count: %x cnt %x: %d\n", 154afa5c31cd2de Russ Weight 2022-06-06 111 STAGING_FLASH_COUNT, FLASH_COUNT_SIZE / stride, ret); 154afa5c31cd2de Russ Weight 2022-06-06 112 goto exit_free; 154afa5c31cd2de Russ Weight 2022-06-06 113 } 154afa5c31cd2de Russ Weight 2022-06-06 114 cnt = num_bits - bitmap_weight((unsigned long *)flash_buf, num_bits); 154afa5c31cd2de Russ Weight 2022-06-06 115 154afa5c31cd2de Russ Weight 2022-06-06 116 exit_free: 154afa5c31cd2de Russ Weight 2022-06-06 117 kfree(flash_buf); 154afa5c31cd2de Russ Weight 2022-06-06 118 154afa5c31cd2de Russ Weight 2022-06-06 119 return ret ? : sysfs_emit(buf, "%u\n", cnt); 154afa5c31cd2de Russ Weight 2022-06-06 120 } 154afa5c31cd2de Russ Weight 2022-06-06 121 static DEVICE_ATTR_RO(flash_count); 154afa5c31cd2de Russ Weight 2022-06-06 122 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
