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mm/vmpressure.c: use kstrndup instead of kmalloc+strncpy 

Using kstrndup() simplifies the code.

Link: http://lkml.kernel.org/r/20180503201807.24941-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Shevchenko 2018-06-07 17:07:50 -07:00 committed by Linus Torvalds
parent bf8d5d52ff
commit d62ff365b8
1 changed files with 1 additions and 2 deletions
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3
mm/vmpressure.c
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@ -390,12 +390,11 @@ int vmpressure_register_event(struct mem_cgroup *memcg,
char *token;
int ret = 0;
spec_orig = spec = kzalloc(MAX_VMPRESSURE_ARGS_LEN + 1, GFP_KERNEL);
spec_orig = spec = kstrndup(args, MAX_VMPRESSURE_ARGS_LEN, GFP_KERNEL);
if (!spec) {
ret = -ENOMEM;
goto out;
}
strncpy(spec, args, MAX_VMPRESSURE_ARGS_LEN);
/* Find required level */
token = strsep(&spec, ",");