From 3d1b3ba1f5fa3812da5b6afd1e8bd6a0ecdadfcd Mon Sep 17 00:00:00 2001 From: buxiasen Date: Fri, 24 May 2024 22:05:38 +0800 Subject: [PATCH] pm: shorten the pm procfs domain lock time. snprintf and procfs_memcpy don't have to do inside lock. Signed-off-by: buxiasen --- drivers/power/pm/pm_procfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/power/pm/pm_procfs.c b/drivers/power/pm/pm_procfs.c index 199fc41f9e4..39f8d5303b7 100644 --- a/drivers/power/pm/pm_procfs.c +++ b/drivers/power/pm/pm_procfs.c @@ -330,6 +330,8 @@ static ssize_t pm_read_state(FAR struct file *filep, FAR char *buffer, sum += wake[state] + sleep[state]; } + pm_domain_unlock(pmfile->domain, flags); + sum = sum ? sum : 1; for (state = 0; state < PM_COUNT && totalsize < buflen; state++) @@ -355,8 +357,6 @@ static ssize_t pm_read_state(FAR struct file *filep, FAR char *buffer, totalsize += copysize; } - pm_domain_unlock(pmfile->domain, flags); - filep->f_pos += totalsize; return totalsize; }