From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com, Dan Carpenter <error27@gmail.com>
Subject: drivers/i2c/busses/i2c-ls2x.c:153 ls2x_i2c_send_byte() error: uninitialized symbol 'rxdata'.
Date: Tue, 19 Sep 2023 11:10:44 +0800 [thread overview]
Message-ID: <202309191143.eMtBC0th-lkp@intel.com> (raw)
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Binbin Zhou <zhoubinbin@loongson.cn>
CC: Wolfram Sang <wsa-dev@sang-engineering.com>
CC: Andy Shevchenko <andy@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 2cf0f715623872823a72e451243bbf555d10d032
commit: 015e61f0bffd46600496e50d3b2298f51f6b11a8 i2c: ls2x: Add driver for Loongson-2K/LS7A I2C controller
date: 8 months ago
:::::: branch date: 8 hours ago
:::::: commit date: 8 months ago
config: csky-randconfig-r071-20230917 (https://download.01.org/0day-ci/archive/20230919/202309191143.eMtBC0th-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230919/202309191143.eMtBC0th-lkp@intel.com/reproduce)
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 <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202309191143.eMtBC0th-lkp@intel.com/
smatch warnings:
drivers/i2c/busses/i2c-ls2x.c:153 ls2x_i2c_send_byte() error: uninitialized symbol 'rxdata'.
vim +/rxdata +153 drivers/i2c/busses/i2c-ls2x.c
015e61f0bffd46 Binbin Zhou 2023-01-31 143
015e61f0bffd46 Binbin Zhou 2023-01-31 144 static int ls2x_i2c_send_byte(struct ls2x_i2c_priv *priv, u8 txdata)
015e61f0bffd46 Binbin Zhou 2023-01-31 145 {
015e61f0bffd46 Binbin Zhou 2023-01-31 146 int ret;
015e61f0bffd46 Binbin Zhou 2023-01-31 147 u8 rxdata;
015e61f0bffd46 Binbin Zhou 2023-01-31 148
015e61f0bffd46 Binbin Zhou 2023-01-31 149 ret = ls2x_i2c_xfer_byte(priv, txdata, &rxdata);
015e61f0bffd46 Binbin Zhou 2023-01-31 150 if (ret)
015e61f0bffd46 Binbin Zhou 2023-01-31 151 return ret;
015e61f0bffd46 Binbin Zhou 2023-01-31 152
015e61f0bffd46 Binbin Zhou 2023-01-31 @153 if (rxdata & LS2X_SR_AL)
015e61f0bffd46 Binbin Zhou 2023-01-31 154 return -EAGAIN;
015e61f0bffd46 Binbin Zhou 2023-01-31 155
015e61f0bffd46 Binbin Zhou 2023-01-31 156 if (rxdata & LS2X_SR_NOACK)
015e61f0bffd46 Binbin Zhou 2023-01-31 157 return -ENXIO;
015e61f0bffd46 Binbin Zhou 2023-01-31 158
015e61f0bffd46 Binbin Zhou 2023-01-31 159 return 0;
015e61f0bffd46 Binbin Zhou 2023-01-31 160 }
015e61f0bffd46 Binbin Zhou 2023-01-31 161
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2023-09-19 3:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-19 3:10 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2023-11-22 23:32 drivers/i2c/busses/i2c-ls2x.c:153 ls2x_i2c_send_byte() error: uninitialized symbol 'rxdata' kernel test robot
2023-09-23 0:59 kernel test robot
2023-09-22 16:49 kernel test robot
2023-09-21 1:29 kernel test robot
2023-09-19 19:32 kernel test robot
2023-09-17 6:45 kernel test robot
2023-07-27 18:08 kernel test robot
2023-05-18 18:57 kernel test robot
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