subject:"\[kbuild\] mm\/damon\/dbgfs.c\:227 dbgfs_schemes_write\(\) warn\: passing a valid pointer to 'PTR

[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

2022-08-21 Thread kernel test robot

BCC: l...@intel.com
CC: kbuild-...@lists.01.org
CC: linux-ker...@vger.kernel.org
TO: SeongJae Park 
CC: Andrew Morton 
CC: Linux Memory Management List 

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   15b3f48a4339e3c16acf18624e2b7f60bc5e9a2c
commit: af122dd8f3c0099349bc98ff69f0d90efd8b149f mm/damon/dbgfs: support 
DAMON-based Operation Schemes
date:   10 months ago
:: branch date: 11 hours ago
:: commit date: 10 months ago
config: parisc-randconfig-m031-20220821 
(https://download.01.org/0day-ci/archive/20220821/202208211602.0nj8xuw7-...@intel.com/config)
compiler: hppa-linux-gcc (GCC) 12.1.0

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot 
Reported-by: Dan Carpenter 

smatch warnings:
mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 
'PTR_ERR'

vim +/PTR_ERR +227 mm/damon/dbgfs.c

af122dd8f3c009 SeongJae Park 2021-11-05  215  
af122dd8f3c009 SeongJae Park 2021-11-05  216  static ssize_t 
dbgfs_schemes_write(struct file *file, const char __user *buf,
af122dd8f3c009 SeongJae Park 2021-11-05  217size_t count, loff_t 
*ppos)
af122dd8f3c009 SeongJae Park 2021-11-05  218  {
af122dd8f3c009 SeongJae Park 2021-11-05  219struct damon_ctx *ctx = 
file->private_data;
af122dd8f3c009 SeongJae Park 2021-11-05  220char *kbuf;
af122dd8f3c009 SeongJae Park 2021-11-05  221struct damos **schemes;
af122dd8f3c009 SeongJae Park 2021-11-05  222ssize_t nr_schemes = 0, ret = 
count;
af122dd8f3c009 SeongJae Park 2021-11-05  223int err;
af122dd8f3c009 SeongJae Park 2021-11-05  224  
af122dd8f3c009 SeongJae Park 2021-11-05  225kbuf = user_input_str(buf, 
count, ppos);
af122dd8f3c009 SeongJae Park 2021-11-05  226if (IS_ERR(kbuf))
af122dd8f3c009 SeongJae Park 2021-11-05 @227return PTR_ERR(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  228  
af122dd8f3c009 SeongJae Park 2021-11-05  229schemes = str_to_schemes(kbuf, 
ret, _schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  230if (!schemes) {
af122dd8f3c009 SeongJae Park 2021-11-05  231ret = -EINVAL;
af122dd8f3c009 SeongJae Park 2021-11-05  232goto out;
af122dd8f3c009 SeongJae Park 2021-11-05  233}
af122dd8f3c009 SeongJae Park 2021-11-05  234  
af122dd8f3c009 SeongJae Park 2021-11-05  235mutex_lock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  236if (ctx->kdamond) {
af122dd8f3c009 SeongJae Park 2021-11-05  237ret = -EBUSY;
af122dd8f3c009 SeongJae Park 2021-11-05  238goto unlock_out;
af122dd8f3c009 SeongJae Park 2021-11-05  239}
af122dd8f3c009 SeongJae Park 2021-11-05  240  
af122dd8f3c009 SeongJae Park 2021-11-05  241err = damon_set_schemes(ctx, 
schemes, nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  242if (err)
af122dd8f3c009 SeongJae Park 2021-11-05  243ret = err;
af122dd8f3c009 SeongJae Park 2021-11-05  244else
af122dd8f3c009 SeongJae Park 2021-11-05  245nr_schemes = 0;
af122dd8f3c009 SeongJae Park 2021-11-05  246  unlock_out:
af122dd8f3c009 SeongJae Park 2021-11-05  247
mutex_unlock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  248free_schemes_arr(schemes, 
nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  249  out:
af122dd8f3c009 SeongJae Park 2021-11-05  250kfree(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  251return ret;
af122dd8f3c009 SeongJae Park 2021-11-05  252  }
af122dd8f3c009 SeongJae Park 2021-11-05  253  

-- 
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[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

2022-03-31 Thread kernel test robot

CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: SeongJae Park 
CC: Andrew Morton 
CC: Linux Memory Management List 

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   787af64d05cd528aac9ad16752d11bb1c6061bb9
commit: af122dd8f3c0099349bc98ff69f0d90efd8b149f mm/damon/dbgfs: support 
DAMON-based Operation Schemes
date:   5 months ago
:: branch date: 13 hours ago
:: commit date: 5 months ago
config: arc-randconfig-m031-20220331 
(https://download.01.org/0day-ci/archive/20220331/202203311938.cvfj0j5j-...@intel.com/config)
compiler: arceb-elf-gcc (GCC) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 
Reported-by: Dan Carpenter 

smatch warnings:
mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 
'PTR_ERR'

vim +/PTR_ERR +227 mm/damon/dbgfs.c

af122dd8f3c009 SeongJae Park 2021-11-05  215  
af122dd8f3c009 SeongJae Park 2021-11-05  216  static ssize_t 
dbgfs_schemes_write(struct file *file, const char __user *buf,
af122dd8f3c009 SeongJae Park 2021-11-05  217size_t count, loff_t 
*ppos)
af122dd8f3c009 SeongJae Park 2021-11-05  218  {
af122dd8f3c009 SeongJae Park 2021-11-05  219struct damon_ctx *ctx = 
file->private_data;
af122dd8f3c009 SeongJae Park 2021-11-05  220char *kbuf;
af122dd8f3c009 SeongJae Park 2021-11-05  221struct damos **schemes;
af122dd8f3c009 SeongJae Park 2021-11-05  222ssize_t nr_schemes = 0, ret = 
count;
af122dd8f3c009 SeongJae Park 2021-11-05  223int err;
af122dd8f3c009 SeongJae Park 2021-11-05  224  
af122dd8f3c009 SeongJae Park 2021-11-05  225kbuf = user_input_str(buf, 
count, ppos);
af122dd8f3c009 SeongJae Park 2021-11-05  226if (IS_ERR(kbuf))
af122dd8f3c009 SeongJae Park 2021-11-05 @227return PTR_ERR(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  228  
af122dd8f3c009 SeongJae Park 2021-11-05  229schemes = str_to_schemes(kbuf, 
ret, _schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  230if (!schemes) {
af122dd8f3c009 SeongJae Park 2021-11-05  231ret = -EINVAL;
af122dd8f3c009 SeongJae Park 2021-11-05  232goto out;
af122dd8f3c009 SeongJae Park 2021-11-05  233}
af122dd8f3c009 SeongJae Park 2021-11-05  234  
af122dd8f3c009 SeongJae Park 2021-11-05  235mutex_lock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  236if (ctx->kdamond) {
af122dd8f3c009 SeongJae Park 2021-11-05  237ret = -EBUSY;
af122dd8f3c009 SeongJae Park 2021-11-05  238goto unlock_out;
af122dd8f3c009 SeongJae Park 2021-11-05  239}
af122dd8f3c009 SeongJae Park 2021-11-05  240  
af122dd8f3c009 SeongJae Park 2021-11-05  241err = damon_set_schemes(ctx, 
schemes, nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  242if (err)
af122dd8f3c009 SeongJae Park 2021-11-05  243ret = err;
af122dd8f3c009 SeongJae Park 2021-11-05  244else
af122dd8f3c009 SeongJae Park 2021-11-05  245nr_schemes = 0;
af122dd8f3c009 SeongJae Park 2021-11-05  246  unlock_out:
af122dd8f3c009 SeongJae Park 2021-11-05  247
mutex_unlock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  248free_schemes_arr(schemes, 
nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  249  out:
af122dd8f3c009 SeongJae Park 2021-11-05  250kfree(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  251return ret;
af122dd8f3c009 SeongJae Park 2021-11-05  252  }
af122dd8f3c009 SeongJae Park 2021-11-05  253  

-- 
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[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

2022-03-10 Thread kernel test robot

CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: SeongJae Park 
CC: Andrew Morton 
CC: Linux Memory Management List 

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   1db333d9a51f3459fba1bcaa564d95befe79f0b3
commit: af122dd8f3c0099349bc98ff69f0d90efd8b149f mm/damon/dbgfs: support 
DAMON-based Operation Schemes
date:   4 months ago
:: branch date: 8 hours ago
:: commit date: 4 months ago
config: arc-randconfig-m031-20220310 
(https://download.01.org/0day-ci/archive/20220311/202203110455.vybmk8pt-...@intel.com/config)
compiler: arceb-elf-gcc (GCC) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 
Reported-by: Dan Carpenter 

smatch warnings:
mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 
'PTR_ERR'

vim +/PTR_ERR +227 mm/damon/dbgfs.c

af122dd8f3c009 SeongJae Park 2021-11-05  215  
af122dd8f3c009 SeongJae Park 2021-11-05  216  static ssize_t 
dbgfs_schemes_write(struct file *file, const char __user *buf,
af122dd8f3c009 SeongJae Park 2021-11-05  217size_t count, loff_t 
*ppos)
af122dd8f3c009 SeongJae Park 2021-11-05  218  {
af122dd8f3c009 SeongJae Park 2021-11-05  219struct damon_ctx *ctx = 
file->private_data;
af122dd8f3c009 SeongJae Park 2021-11-05  220char *kbuf;
af122dd8f3c009 SeongJae Park 2021-11-05  221struct damos **schemes;
af122dd8f3c009 SeongJae Park 2021-11-05  222ssize_t nr_schemes = 0, ret = 
count;
af122dd8f3c009 SeongJae Park 2021-11-05  223int err;
af122dd8f3c009 SeongJae Park 2021-11-05  224  
af122dd8f3c009 SeongJae Park 2021-11-05  225kbuf = user_input_str(buf, 
count, ppos);
af122dd8f3c009 SeongJae Park 2021-11-05  226if (IS_ERR(kbuf))
af122dd8f3c009 SeongJae Park 2021-11-05 @227return PTR_ERR(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  228  
af122dd8f3c009 SeongJae Park 2021-11-05  229schemes = str_to_schemes(kbuf, 
ret, _schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  230if (!schemes) {
af122dd8f3c009 SeongJae Park 2021-11-05  231ret = -EINVAL;
af122dd8f3c009 SeongJae Park 2021-11-05  232goto out;
af122dd8f3c009 SeongJae Park 2021-11-05  233}
af122dd8f3c009 SeongJae Park 2021-11-05  234  
af122dd8f3c009 SeongJae Park 2021-11-05  235mutex_lock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  236if (ctx->kdamond) {
af122dd8f3c009 SeongJae Park 2021-11-05  237ret = -EBUSY;
af122dd8f3c009 SeongJae Park 2021-11-05  238goto unlock_out;
af122dd8f3c009 SeongJae Park 2021-11-05  239}
af122dd8f3c009 SeongJae Park 2021-11-05  240  
af122dd8f3c009 SeongJae Park 2021-11-05  241err = damon_set_schemes(ctx, 
schemes, nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  242if (err)
af122dd8f3c009 SeongJae Park 2021-11-05  243ret = err;
af122dd8f3c009 SeongJae Park 2021-11-05  244else
af122dd8f3c009 SeongJae Park 2021-11-05  245nr_schemes = 0;
af122dd8f3c009 SeongJae Park 2021-11-05  246  unlock_out:
af122dd8f3c009 SeongJae Park 2021-11-05  247
mutex_unlock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  248free_schemes_arr(schemes, 
nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  249  out:
af122dd8f3c009 SeongJae Park 2021-11-05  250kfree(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  251return ret;
af122dd8f3c009 SeongJae Park 2021-11-05  252  }
af122dd8f3c009 SeongJae Park 2021-11-05  253  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
___
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[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

2021-12-04 Thread kernel test robot

CC: kbuild-...@lists.01.org
CC: linux-ker...@vger.kernel.org
TO: SeongJae Park 
CC: Andrew Morton 
CC: Linux Memory Management List 

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   79a72162048e42a677bc7336a9f5d86fc3ff9558
commit: af122dd8f3c0099349bc98ff69f0d90efd8b149f mm/damon/dbgfs: support 
DAMON-based Operation Schemes
date:   4 weeks ago
:: branch date: 3 hours ago
:: commit date: 4 weeks ago
config: nios2-randconfig-m031-20211202 
(https://download.01.org/0day-ci/archive/20211205/202112051142.duifl7h9-...@intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 
Reported-by: Dan Carpenter 

smatch warnings:
mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 
'PTR_ERR'

vim +/PTR_ERR +227 mm/damon/dbgfs.c

af122dd8f3c009 SeongJae Park 2021-11-05  215  
af122dd8f3c009 SeongJae Park 2021-11-05  216  static ssize_t 
dbgfs_schemes_write(struct file *file, const char __user *buf,
af122dd8f3c009 SeongJae Park 2021-11-05  217size_t count, loff_t 
*ppos)
af122dd8f3c009 SeongJae Park 2021-11-05  218  {
af122dd8f3c009 SeongJae Park 2021-11-05  219struct damon_ctx *ctx = 
file->private_data;
af122dd8f3c009 SeongJae Park 2021-11-05  220char *kbuf;
af122dd8f3c009 SeongJae Park 2021-11-05  221struct damos **schemes;
af122dd8f3c009 SeongJae Park 2021-11-05  222ssize_t nr_schemes = 0, ret = 
count;
af122dd8f3c009 SeongJae Park 2021-11-05  223int err;
af122dd8f3c009 SeongJae Park 2021-11-05  224  
af122dd8f3c009 SeongJae Park 2021-11-05  225kbuf = user_input_str(buf, 
count, ppos);
af122dd8f3c009 SeongJae Park 2021-11-05  226if (IS_ERR(kbuf))
af122dd8f3c009 SeongJae Park 2021-11-05 @227return PTR_ERR(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  228  
af122dd8f3c009 SeongJae Park 2021-11-05  229schemes = str_to_schemes(kbuf, 
ret, _schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  230if (!schemes) {
af122dd8f3c009 SeongJae Park 2021-11-05  231ret = -EINVAL;
af122dd8f3c009 SeongJae Park 2021-11-05  232goto out;
af122dd8f3c009 SeongJae Park 2021-11-05  233}
af122dd8f3c009 SeongJae Park 2021-11-05  234  
af122dd8f3c009 SeongJae Park 2021-11-05  235mutex_lock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  236if (ctx->kdamond) {
af122dd8f3c009 SeongJae Park 2021-11-05  237ret = -EBUSY;
af122dd8f3c009 SeongJae Park 2021-11-05  238goto unlock_out;
af122dd8f3c009 SeongJae Park 2021-11-05  239}
af122dd8f3c009 SeongJae Park 2021-11-05  240  
af122dd8f3c009 SeongJae Park 2021-11-05  241err = damon_set_schemes(ctx, 
schemes, nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  242if (err)
af122dd8f3c009 SeongJae Park 2021-11-05  243ret = err;
af122dd8f3c009 SeongJae Park 2021-11-05  244else
af122dd8f3c009 SeongJae Park 2021-11-05  245nr_schemes = 0;
af122dd8f3c009 SeongJae Park 2021-11-05  246  unlock_out:
af122dd8f3c009 SeongJae Park 2021-11-05  247
mutex_unlock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  248free_schemes_arr(schemes, 
nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  249  out:
af122dd8f3c009 SeongJae Park 2021-11-05  250kfree(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  251return ret;
af122dd8f3c009 SeongJae Park 2021-11-05  252  }
af122dd8f3c009 SeongJae Park 2021-11-05  253  

---
0-DAY CI Kernel Test Service, Intel Corporation
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___
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[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

2021-11-24 Thread kernel test robot

CC: kbuild-...@lists.01.org
CC: linux-ker...@vger.kernel.org
TO: SeongJae Park 
CC: Andrew Morton 
CC: Linux Memory Management List 

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   5d9f4cf36721aba199975a9be7863a3ff5cd4b59
commit: af122dd8f3c0099349bc98ff69f0d90efd8b149f mm/damon/dbgfs: support 
DAMON-based Operation Schemes
date:   3 weeks ago
:: branch date: 15 hours ago
:: commit date: 3 weeks ago
config: nios2-randconfig-m031-20211123 
(https://download.01.org/0day-ci/archive/20211124/202111242159.c8ouotfg-...@intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 
Reported-by: Dan Carpenter 

smatch warnings:
mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 
'PTR_ERR'

vim +/PTR_ERR +227 mm/damon/dbgfs.c

af122dd8f3c009 SeongJae Park 2021-11-05  215  
af122dd8f3c009 SeongJae Park 2021-11-05  216  static ssize_t 
dbgfs_schemes_write(struct file *file, const char __user *buf,
af122dd8f3c009 SeongJae Park 2021-11-05  217size_t count, loff_t 
*ppos)
af122dd8f3c009 SeongJae Park 2021-11-05  218  {
af122dd8f3c009 SeongJae Park 2021-11-05  219struct damon_ctx *ctx = 
file->private_data;
af122dd8f3c009 SeongJae Park 2021-11-05  220char *kbuf;
af122dd8f3c009 SeongJae Park 2021-11-05  221struct damos **schemes;
af122dd8f3c009 SeongJae Park 2021-11-05  222ssize_t nr_schemes = 0, ret = 
count;
af122dd8f3c009 SeongJae Park 2021-11-05  223int err;
af122dd8f3c009 SeongJae Park 2021-11-05  224  
af122dd8f3c009 SeongJae Park 2021-11-05  225kbuf = user_input_str(buf, 
count, ppos);
af122dd8f3c009 SeongJae Park 2021-11-05  226if (IS_ERR(kbuf))
af122dd8f3c009 SeongJae Park 2021-11-05 @227return PTR_ERR(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  228  
af122dd8f3c009 SeongJae Park 2021-11-05  229schemes = str_to_schemes(kbuf, 
ret, _schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  230if (!schemes) {
af122dd8f3c009 SeongJae Park 2021-11-05  231ret = -EINVAL;
af122dd8f3c009 SeongJae Park 2021-11-05  232goto out;
af122dd8f3c009 SeongJae Park 2021-11-05  233}
af122dd8f3c009 SeongJae Park 2021-11-05  234  
af122dd8f3c009 SeongJae Park 2021-11-05  235mutex_lock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  236if (ctx->kdamond) {
af122dd8f3c009 SeongJae Park 2021-11-05  237ret = -EBUSY;
af122dd8f3c009 SeongJae Park 2021-11-05  238goto unlock_out;
af122dd8f3c009 SeongJae Park 2021-11-05  239}
af122dd8f3c009 SeongJae Park 2021-11-05  240  
af122dd8f3c009 SeongJae Park 2021-11-05  241err = damon_set_schemes(ctx, 
schemes, nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  242if (err)
af122dd8f3c009 SeongJae Park 2021-11-05  243ret = err;
af122dd8f3c009 SeongJae Park 2021-11-05  244else
af122dd8f3c009 SeongJae Park 2021-11-05  245nr_schemes = 0;
af122dd8f3c009 SeongJae Park 2021-11-05  246  unlock_out:
af122dd8f3c009 SeongJae Park 2021-11-05  247
mutex_unlock(>kdamond_lock);
af122dd8f3c009 SeongJae Park 2021-11-05  248free_schemes_arr(schemes, 
nr_schemes);
af122dd8f3c009 SeongJae Park 2021-11-05  249  out:
af122dd8f3c009 SeongJae Park 2021-11-05  250kfree(kbuf);
af122dd8f3c009 SeongJae Park 2021-11-05  251return ret;
af122dd8f3c009 SeongJae Park 2021-11-05  252  }
af122dd8f3c009 SeongJae Park 2021-11-05  253  

---
0-DAY CI Kernel Test Service, Intel Corporation
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[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

[kbuild] mm/damon/dbgfs.c:227 dbgfs_schemes_write() warn: passing a valid pointer to 'PTR_ERR'

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