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-rw-r--r--kernel/power/main.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 0b9497851a9a..bfb684a4d412 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -234,13 +234,17 @@ power_attr(pm_trace);
* threshold of device suspend time consumption in microsecond(0.5ms), the
* driver suspend/resume time longer than this threshold will be
* print to console, 0 to disable */
-int device_suspend_time_threshold = 500;
+int device_suspend_time_threshold;
static ssize_t
device_suspend_time_threshold_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
- return sprintf(buf, "%d\n", device_suspend_time_threshold);
+ if (device_suspend_time_threshold == 0)
+ return sprintf(buf, "off\n");
+ else
+ return sprintf(buf, "%d usecs\n",
+ device_suspend_time_threshold);
}
static ssize_t