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thermal: core: Use sysfs_emit_at() instead of scnprintf()

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Follow the advice in Documentation/filesystems/sysfs.rst that show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
ye xingchen 2023-01-17 10:40:26 +08:00 committed by Rafael J. Wysocki
parent 9e0a9be24b
commit 5bbafd4362
1 changed files with 2 additions and 3 deletions
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5
drivers/thermal/thermal_core.c
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@ -229,10 +229,9 @@ int thermal_build_list_of_policies(char *buf)
mutex_lock(&thermal_governor_lock);
list_for_each_entry(pos, &thermal_governor_list, governor_list) {
count += scnprintf(buf + count, PAGE_SIZE - count, "%s ",
pos->name);
count += sysfs_emit_at(buf, count, "%s ", pos->name);
}
count += scnprintf(buf + count, PAGE_SIZE - count, "\n");
count += sysfs_emit_at(buf, count, "\n");
mutex_unlock(&thermal_governor_lock);