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Diffstat (limited to 'kernel/power/qos.c')
-rw-r--r--kernel/power/qos.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 782d3b41c1f3..4244b069442e 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -220,6 +220,11 @@ static struct pm_qos_constraints cpu_latency_constraints = {
.type = PM_QOS_MIN,
};
+static inline bool cpu_latency_qos_value_invalid(s32 value)
+{
+ return value < 0 && value != PM_QOS_DEFAULT_VALUE;
+}
+
/**
* cpu_latency_qos_limit - Return current system-wide CPU latency QoS limit.
*/
@@ -263,7 +268,7 @@ static void cpu_latency_qos_apply(struct pm_qos_request *req,
*/
void cpu_latency_qos_add_request(struct pm_qos_request *req, s32 value)
{
- if (!req)
+ if (!req || cpu_latency_qos_value_invalid(value))
return;
if (cpu_latency_qos_request_active(req)) {
@@ -289,7 +294,7 @@ EXPORT_SYMBOL_GPL(cpu_latency_qos_add_request);
*/
void cpu_latency_qos_update_request(struct pm_qos_request *req, s32 new_value)
{
- if (!req)
+ if (!req || cpu_latency_qos_value_invalid(new_value))
return;
if (!cpu_latency_qos_request_active(req)) {