From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: drivers/regulator/ti-abb-regulator.c:485:15: warning: Division by zero [clang-analyzer-core.DivideZero]
Date: Wed, 23 Mar 2022 04:20:10 +0800 [thread overview]
Message-ID: <202203230401.8oh2cdUw-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 21744 bytes --]
CC: llvm(a)lists.linux.dev
CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
CC: linux-kernel(a)vger.kernel.org
TO: Cai Huoqing <caihuoqing@baidu.com>
CC: Mark Brown <broonie@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b47d5a4f6b8d42f8a8fbe891b36215e4fddc53be
commit: b36061c2ea5bdacf51305f8bc79f29595b343eb6 regulator: ti-abb: Kconfig: Add helper dependency on COMPILE_TEST
date: 6 months ago
:::::: branch date: 16 hours ago
:::::: commit date: 6 months ago
config: arm-randconfig-c002-20220312 (https://download.01.org/0day-ci/archive/20220323/202203230401.8oh2cdUw-lkp(a)intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 276ca87382b8f16a65bddac700202924228982f6)
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=b36061c2ea5bdacf51305f8bc79f29595b343eb6
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout b36061c2ea5bdacf51305f8bc79f29595b343eb6
# save the config file 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 <lkp@intel.com>
clang-analyzer warnings: (new ones prefixed by >>)
^~~~~~~~~~~~
fs/xfs/xfs_log_recover.c:178:10: note: Returning from 'xlog_do_io'
error = xlog_do_io(log, blk_no, nbblks, data, REQ_OP_READ);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/xfs_log_recover.c:179:7: note: 'error' is not equal to 0, which participates in a condition later
if (!error)
^~~~~
fs/xfs/xfs_log_recover.c:179:2: note: Taking false branch
if (!error)
^
fs/xfs/xfs_log_recover.c:181:2: note: Returning value (loaded from 'error'), which participates in a condition later
return error;
^~~~~~~~~~~~
fs/xfs/xfs_log_recover.c:813:12: note: Returning from 'xlog_bread'
error = xlog_bread(log, i, 1, buffer, &offset);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/xfs_log_recover.c:814:8: note: 'error' is not equal to 0, which participates in a condition later
if (error)
^~~~~
fs/xfs/xfs_log_recover.c:814:4: note: Taking true branch
if (error)
^
fs/xfs/xfs_log_recover.c:815:5: note: Control jumps to line 831
goto out_error;
^
fs/xfs/xfs_log_recover.c:831:2: note: Returning without writing to '*rhead'
return error;
^
fs/xfs/xfs_log_recover.c:831:2: note: Returning value (loaded from 'error'), which participates in a condition later
return error;
^~~~~~~~~~~~
fs/xfs/xfs_log_recover.c:1287:10: note: Returning from 'xlog_rseek_logrec_hdr'
error = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, buffer,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/xfs_log_recover.c:1289:6: note: Assuming 'error' is >= 0
if (error < 0)
^~~~~~~~~
fs/xfs/xfs_log_recover.c:1289:2: note: Taking false branch
if (error < 0)
^
fs/xfs/xfs_log_recover.c:1291:7: note: 'error' is not equal to 0
if (!error) {
^~~~~
fs/xfs/xfs_log_recover.c:1291:2: note: Taking false branch
if (!error) {
^
fs/xfs/xfs_log_recover.c:1296:24: note: Access to field 'h_tail_lsn' results in a dereference of an undefined pointer value (loaded from variable 'rhead')
*tail_blk = BLOCK_LSN(be64_to_cpu(rhead->h_tail_lsn));
^
include/linux/byteorder/generic.h:93:21: note: expanded from macro 'be64_to_cpu'
#define be64_to_cpu __be64_to_cpu
^
include/uapi/linux/byteorder/little_endian.h:38:58: note: expanded from macro '__be64_to_cpu'
#define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x))
^~
include/uapi/linux/swab.h:128:54: note: expanded from macro '__swab64'
#define __swab64(x) (__u64)__builtin_bswap64((__u64)(x))
^
fs/xfs/libxfs/xfs_log_format.h:52:32: note: expanded from macro 'BLOCK_LSN'
#define BLOCK_LSN(lsn) ((uint)(lsn))
^~~
fs/xfs/xfs_log_recover.c:3525:20: warning: Value stored to 'mp' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
struct xfs_mount *mp = log->l_mp;
^~ ~~~~~~~~~
fs/xfs/xfs_log_recover.c:3525:20: note: Value stored to 'mp' during its initialization is never read
struct xfs_mount *mp = log->l_mp;
^~ ~~~~~~~~~
Suppressed 11 warnings (8 in non-user code, 3 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.
8 warnings generated.
Suppressed 8 warnings (7 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.
8 warnings generated.
Suppressed 8 warnings (7 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.
8 warnings generated.
Suppressed 8 warnings (7 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.
8 warnings generated.
Suppressed 8 warnings (7 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.
8 warnings generated.
Suppressed 8 warnings (7 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.
7 warnings generated.
Suppressed 7 warnings (7 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.
7 warnings generated.
Suppressed 7 warnings (7 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.
7 warnings generated.
Suppressed 7 warnings (7 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.
7 warnings generated.
Suppressed 7 warnings (7 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.
7 warnings generated.
Suppressed 7 warnings (7 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.
10 warnings generated.
>> drivers/regulator/ti-abb-regulator.c:485:15: warning: Division by zero [clang-analyzer-core.DivideZero]
cycle_rate = DIV_ROUND_CLOSEST(clock_cycles * 10, clk_rate);
^
include/linux/math.h:92:26: note: expanded from macro 'DIV_ROUND_CLOSEST'
(((__x) + ((__d) / 2)) / (__d)) : \
~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
drivers/regulator/ti-abb-regulator.c:427:8: note: Calling 'of_property_read_u32'
ret = of_property_read_u32(dev->of_node, pname, &abb->settling_time);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/of.h:1256:9: note: Calling 'of_property_read_u32_array'
return of_property_read_u32_array(np, propname, out_value, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/of.h:504:12: note: Value assigned to field 'settling_time', which participates in a condition later
int ret = of_property_read_variable_u32_array(np, propname, out_values,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/of.h:506:6: note: Assuming 'ret' is >= 0
if (ret >= 0)
^~~~~~~~
include/linux/of.h:506:2: note: Taking true branch
if (ret >= 0)
^
include/linux/of.h:507:3: note: Returning zero, which participates in a condition later
return 0;
^~~~~~~~
include/linux/of.h:1256:9: note: Returning from 'of_property_read_u32_array'
return of_property_read_u32_array(np, propname, out_value, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/of.h:1256:2: note: Returning zero, which participates in a condition later
return of_property_read_u32_array(np, propname, out_value, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/regulator/ti-abb-regulator.c:427:8: note: Returning from 'of_property_read_u32'
ret = of_property_read_u32(dev->of_node, pname, &abb->settling_time);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/regulator/ti-abb-regulator.c:428:6: note: 'ret' is 0
if (ret) {
^~~
drivers/regulator/ti-abb-regulator.c:428:2: note: Taking false branch
if (ret) {
^
drivers/regulator/ti-abb-regulator.c:434:6: note: Assuming field 'settling_time' is not equal to 0
if (!abb->settling_time) {
^~~~~~~~~~~~~~~~~~~
drivers/regulator/ti-abb-regulator.c:434:2: note: Taking false branch
if (!abb->settling_time) {
^
drivers/regulator/ti-abb-regulator.c:440:8: note: Calling 'of_property_read_u32'
ret = of_property_read_u32(dev->of_node, pname, &clock_cycles);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/of.h:1256:9: note: Calling 'of_property_read_u32_array'
return of_property_read_u32_array(np, propname, out_value, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/of.h:504:12: note: Value assigned to 'clock_cycles', which participates in a condition later
int ret = of_property_read_variable_u32_array(np, propname, out_values,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/of.h:506:6: note: Assuming 'ret' is >= 0
if (ret >= 0)
^~~~~~~~
include/linux/of.h:506:2: note: Taking true branch
if (ret >= 0)
^
include/linux/of.h:507:3: note: Returning zero, which participates in a condition later
return 0;
^~~~~~~~
include/linux/of.h:1256:9: note: Returning from 'of_property_read_u32_array'
return of_property_read_u32_array(np, propname, out_value, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/of.h:1256:2: note: Returning zero, which participates in a condition later
return of_property_read_u32_array(np, propname, out_value, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/regulator/ti-abb-regulator.c:440:8: note: Returning from 'of_property_read_u32'
ret = of_property_read_u32(dev->of_node, pname, &clock_cycles);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/regulator/ti-abb-regulator.c:441:6: note: 'ret' is 0
if (ret) {
^~~
drivers/regulator/ti-abb-regulator.c:441:2: note: Taking false branch
if (ret) {
^
drivers/regulator/ti-abb-regulator.c:446:6: note: Assuming 'clock_cycles' is not equal to 0
if (!clock_cycles) {
^~~~~~~~~~~~~
drivers/regulator/ti-abb-regulator.c:446:2: note: Taking false branch
if (!clock_cycles) {
^
drivers/regulator/ti-abb-regulator.c:452:6: note: Calling 'IS_ERR'
if (IS_ERR(abb->clk)) {
^~~~~~~~~~~~~~~~
include/linux/err.h:36:2: note: Returning zero, which participates in a condition later
return IS_ERR_VALUE((unsigned long)ptr);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/regulator/ti-abb-regulator.c:452:6: note: Returning from 'IS_ERR'
if (IS_ERR(abb->clk)) {
^~~~~~~~~~~~~~~~
drivers/regulator/ti-abb-regulator.c:452:2: note: Taking false branch
if (IS_ERR(abb->clk)) {
^
drivers/regulator/ti-abb-regulator.c:482:13: note: Left side of '||' is true
clk_rate = DIV_ROUND_CLOSEST(clk_get_rate(abb->clk), 1000000);
^
include/linux/math.h:89:23: note: expanded from macro 'DIV_ROUND_CLOSEST'
(((typeof(x))-1) > 0 || \
vim +485 drivers/regulator/ti-abb-regulator.c
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 410
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 411 /**
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 412 * ti_abb_init_timings() - setup ABB clock timing for the current platform
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 413 * @dev: device
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 414 * @abb: pointer to the abb instance
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 415 *
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 416 * Return: 0 if timing is updated, else returns error result.
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 417 */
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 418 static int ti_abb_init_timings(struct device *dev, struct ti_abb *abb)
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 419 {
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 420 u32 clock_cycles;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 421 u32 clk_rate, sr2_wt_cnt_val, cycle_rate;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 422 const struct ti_abb_reg *regs = abb->regs;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 423 int ret;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 424 char *pname = "ti,settling-time";
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 425
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 426 /* read device tree properties */
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 427 ret = of_property_read_u32(dev->of_node, pname, &abb->settling_time);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 428 if (ret) {
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 429 dev_err(dev, "Unable to get property '%s'(%d)\n", pname, ret);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 430 return ret;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 431 }
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 432
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 433 /* ABB LDO cannot be settle in 0 time */
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 434 if (!abb->settling_time) {
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 435 dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 436 return -EINVAL;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 437 }
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 438
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 439 pname = "ti,clock-cycles";
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 440 ret = of_property_read_u32(dev->of_node, pname, &clock_cycles);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 441 if (ret) {
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 442 dev_err(dev, "Unable to get property '%s'(%d)\n", pname, ret);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 443 return ret;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 444 }
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 445 /* ABB LDO cannot be settle in 0 clock cycles */
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 446 if (!clock_cycles) {
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 447 dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 448 return -EINVAL;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 449 }
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 450
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 451 abb->clk = devm_clk_get(dev, NULL);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 452 if (IS_ERR(abb->clk)) {
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 453 ret = PTR_ERR(abb->clk);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 454 dev_err(dev, "%s: Unable to get clk(%d)\n", __func__, ret);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 455 return ret;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 456 }
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 457
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 458 /*
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 459 * SR2_WTCNT_VALUE is the settling time for the ABB ldo after a
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 460 * transition and must be programmed with the correct time at boot.
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 461 * The value programmed into the register is the number of SYS_CLK
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 462 * clock cycles that match a given wall time profiled for the ldo.
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 463 * This value depends on:
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 464 * settling time of ldo in micro-seconds (varies per OMAP family)
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 465 * # of clock cycles per SYS_CLK period (varies per OMAP family)
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 466 * the SYS_CLK frequency in MHz (varies per board)
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 467 * The formula is:
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 468 *
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 469 * ldo settling time (in micro-seconds)
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 470 * SR2_WTCNT_VALUE = ------------------------------------------
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 471 * (# system clock cycles) * (sys_clk period)
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 472 *
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 473 * Put another way:
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 474 *
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 475 * SR2_WTCNT_VALUE = settling time / (# SYS_CLK cycles / SYS_CLK rate))
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 476 *
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 477 * To avoid dividing by zero multiply both "# clock cycles" and
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 478 * "settling time" by 10 such that the final result is the one we want.
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 479 */
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 480
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 481 /* Convert SYS_CLK rate to MHz & prevent divide by zero */
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 482 clk_rate = DIV_ROUND_CLOSEST(clk_get_rate(abb->clk), 1000000);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 483
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 484 /* Calculate cycle rate */
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 @485 cycle_rate = DIV_ROUND_CLOSEST(clock_cycles * 10, clk_rate);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 486
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 487 /* Calulate SR2_WTCNT_VALUE */
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 488 sr2_wt_cnt_val = DIV_ROUND_CLOSEST(abb->settling_time * 10, cycle_rate);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 489
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 490 dev_dbg(dev, "%s: Clk_rate=%ld, sr2_cnt=0x%08x\n", __func__,
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 491 clk_get_rate(abb->clk), sr2_wt_cnt_val);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 492
6127daa85094e2 Nishanth Menon 2014-01-23 493 ti_abb_rmw(regs->sr2_wtcnt_value_mask, sr2_wt_cnt_val, abb->setup_reg);
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 494
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 495 return 0;
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 496 }
40b1936efebdb9 Andrii.Tseglytskyi 2013-05-02 497
:::::: The code at line 485 was first introduced by commit
:::::: 40b1936efebdb9c31d9ed6fe59055f71ea366509 regulator: Introduce TI Adaptive Body Bias(ABB) on-chip LDO driver
:::::: TO: Andrii.Tseglytskyi <andrii.tseglytskyi@ti.com>
:::::: CC: Mark Brown <broonie@opensource.wolfsonmicro.com>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
next reply other threads:[~2022-03-22 20:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-22 20:20 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2022-03-14 4:12 drivers/regulator/ti-abb-regulator.c:485:15: warning: Division by zero [clang-analyzer-core.DivideZero] kernel test robot
2022-03-13 9:48 kernel test robot
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