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cpuidle: sysfs: Fix the overlap for showing available governors

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When showing the available governors, it's "%s " in scnprintf(),
not "%s", so if the governor name has 15 characters, it will
overlap with the later one, fix it by adding one more for the
size.

While we are at it, fix the minor coding style issue and remove
the "/sizeof(char)" since sizeof(char) always equals 1.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Doug Smythies <dsmythies@telus.net>
Tested-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Hanjun Guo 2020-05-19 14:25:20 +08:00 committed by Rafael J. Wysocki
parent 8b7ce5e490
commit 3f9f8daad3
1 changed files with 3 additions and 3 deletions
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6
drivers/cpuidle/sysfs.c
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@ -35,10 +35,10 @@ static ssize_t show_available_governors(struct device *dev,
mutex_lock(&cpuidle_lock);
list_for_each_entry(tmp, &cpuidle_governors, governor_list) {
if (i >= (ssize_t) ((PAGE_SIZE/sizeof(char)) -
CPUIDLE_NAME_LEN - 2))
if (i >= (ssize_t) (PAGE_SIZE - (CPUIDLE_NAME_LEN + 2)))
goto out;
i += scnprintf(&buf[i], CPUIDLE_NAME_LEN, "%s ", tmp->name);
i += scnprintf(&buf[i], CPUIDLE_NAME_LEN + 1, "%s ", tmp->name);
}
out: