From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: sound/soc/codecs/max98373-sdw.c:789:26: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign]
Date: Wed, 01 Dec 2021 22:05:28 +0800 [thread overview]
Message-ID: <202112012111.HwiCDMP2-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 31773 bytes --]
CC: llvm(a)lists.linux.dev
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Bard Liao <yung-chuan.liao@linux.intel.com>
CC: Mark Brown <broonie@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 58e1100fdc5990b0cc0d4beaf2562a92e621ac7d
commit: 349dd23931d1943b1083182e35715eba8b150fe1 ASoC: max98373: don't access volatile registers in bias level off
date: 12 months ago
:::::: branch date: 17 hours ago
:::::: commit date: 12 months ago
config: riscv-randconfig-c006-20211118 (https://download.01.org/0day-ci/archive/20211201/202112012111.HwiCDMP2-lkp(a)intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c46becf500df2a7fb4b4fce16178a036c344315a)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# 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 config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv 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 >>)
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
5 warnings generated.
Suppressed 5 warnings (5 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
2 warnings generated.
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.
12 warnings generated.
lib/zstd/decompress.c:1557:4: warning: Value stored to 'remainingSize' is never read [clang-analyzer-deadcode.DeadStores]
remainingSize -= 4;
^ ~
lib/zstd/decompress.c:1557:4: note: Value stored to 'remainingSize' is never read
remainingSize -= 4;
^ ~
Suppressed 11 warnings (6 in non-user code, 5 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.
2 warnings generated.
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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
fs/hpfs/ea.c:260:3: 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(ea->name, key);
^~~~~~
fs/hpfs/ea.c:260:3: 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(ea->name, key);
^~~~~~
Suppressed 5 warnings (5 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.
5 warnings generated.
Suppressed 5 warnings (5 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.
5 warnings generated.
Suppressed 5 warnings (5 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.
18 warnings generated.
kernel/sched/core.c:4243:16: warning: Value stored to 'preempt_disable_ip' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
unsigned long preempt_disable_ip = get_preempt_disable_ip(current);
^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/core.c:4243:16: note: Value stored to 'preempt_disable_ip' during its initialization is never read
unsigned long preempt_disable_ip = get_preempt_disable_ip(current);
^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/core.c:7096:3: warning: Value stored to 'ptr' is never read [clang-analyzer-deadcode.DeadStores]
ptr += nr_cpu_ids * sizeof(void **);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/core.c:7096:3: note: Value stored to 'ptr' is never read
ptr += nr_cpu_ids * sizeof(void **);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Suppressed 16 warnings (14 in non-user code, 2 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.
13 warnings generated.
Suppressed 13 warnings (13 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.
13 warnings generated.
Suppressed 13 warnings (13 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.
>> 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 6 warnings (6 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.
11 warnings generated.
drivers/fsi/fsi-core.c:719:4: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = -EFAULT;
^ ~~~~~~~
drivers/fsi/fsi-core.c:719:4: note: Value stored to 'rc' is never read
rc = -EFAULT;
^ ~~~~~~~
drivers/fsi/fsi-core.c:724:2: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = count;
^ ~~~~~
drivers/fsi/fsi-core.c:724:2: note: Value stored to 'rc' is never read
rc = count;
^ ~~~~~
drivers/fsi/fsi-core.c:753:4: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = -EFAULT;
^ ~~~~~~~
drivers/fsi/fsi-core.c:753:4: note: Value stored to 'rc' is never read
rc = -EFAULT;
^ ~~~~~~~
drivers/fsi/fsi-core.c:761:2: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = count;
^ ~~~~~
drivers/fsi/fsi-core.c:761:2: note: Value stored to 'rc' is never read
rc = count;
^ ~~~~~
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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
5 warnings generated.
Suppressed 5 warnings (5 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
5 warnings generated.
Suppressed 5 warnings (5 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.
--
^~~
Suppressed 5 warnings (5 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
8 warnings generated.
Suppressed 8 warnings (8 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
8 warnings generated.
Suppressed 8 warnings (8 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.
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.
8 warnings generated.
drivers/hwmon/adm9240.c:157:2: warning: Value stored to 'old' is never read [clang-analyzer-deadcode.DeadStores]
old = (reg >> shift) & 3;
^ ~~~~~~~~~~~~~~~~~~
drivers/hwmon/adm9240.c:157:2: note: Value stored to 'old' is never read
old = (reg >> shift) & 3;
^ ~~~~~~~~~~~~~~~~~~
drivers/hwmon/adm9240.c:510:21: warning: Value stored to 'client' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
struct i2c_client *client = data->client;
^~~~~~ ~~~~~~~~~~~~
drivers/hwmon/adm9240.c:510:21: note: Value stored to 'client' during its initialization is never read
struct i2c_client *client = data->client;
^~~~~~ ~~~~~~~~~~~~
Suppressed 6 warnings (6 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.
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.
6 warnings generated.
Suppressed 6 warnings (6 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.
8 warnings generated.
Suppressed 8 warnings (8 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
8 warnings generated.
Suppressed 8 warnings (8 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
>> 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 6 warnings (6 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.
5 warnings generated.
Suppressed 5 warnings (5 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.
8 warnings generated.
fs/hfsplus/bnode.c:328:4: warning: Value stored to 'tmp' is never read [clang-analyzer-deadcode.DeadStores]
tmp = hfs_bnode_read_u16(node, key_off);
^
fs/hfsplus/bnode.c:328:4: note: Value stored to 'tmp' is never read
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.
5 warnings generated.
Suppressed 5 warnings (5 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.
8 warnings generated.
fs/hfsplus/bfind.c:73:3: warning: Value stored to 'cur_cnid' is never read [clang-analyzer-deadcode.DeadStores]
cur_cnid = 0; /* used-uninitialized warning */
^ ~
fs/hfsplus/bfind.c:73:3: note: Value stored to 'cur_cnid' is never read
cur_cnid = 0; /* used-uninitialized warning */
^ ~
fs/hfsplus/bfind.c:74:3: warning: Value stored to 'search_cnid' is never read [clang-analyzer-deadcode.DeadStores]
search_cnid = 0;
^ ~
fs/hfsplus/bfind.c:74:3: note: Value stored to 'search_cnid' is never read
search_cnid = 0;
^ ~
fs/hfsplus/bfind.c:180:2: warning: Value stored to 'res' is never read [clang-analyzer-deadcode.DeadStores]
res = 0;
^ ~
fs/hfsplus/bfind.c:180:2: note: Value stored to 'res' is never read
res = 0;
^ ~
Suppressed 5 warnings (5 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.
6 warnings generated.
Suppressed 6 warnings (6 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.
6 warnings generated.
Suppressed 6 warnings (6 in non-user code).
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/kbuild-all@lists.01.org
next reply other threads:[~2021-12-01 14:05 UTC|newest]
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2021-12-01 14:05 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2021-11-28 12:59 sound/soc/codecs/max98373-sdw.c:789:26: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] kernel test robot
2021-08-22 20:14 kernel test robot
2021-08-18 2:09 kernel test robot
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