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-rw-r--r--drivers/base/power/runtime.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 4fde37713c58..fe1dad68aee4 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1704,6 +1704,8 @@ void pm_runtime_get_suppliers(struct device *dev)
void pm_runtime_put_suppliers(struct device *dev)
{
struct device_link *link;
+ unsigned long flags;
+ bool put;
int idx;
idx = device_links_read_lock();
@@ -1712,7 +1714,11 @@ void pm_runtime_put_suppliers(struct device *dev)
device_links_read_lock_held())
if (link->supplier_preactivated) {
link->supplier_preactivated = false;
- if (refcount_dec_not_one(&link->rpm_active))
+ spin_lock_irqsave(&dev->power.lock, flags);
+ put = pm_runtime_status_suspended(dev) &&
+ refcount_dec_not_one(&link->rpm_active);
+ spin_unlock_irqrestore(&dev->power.lock, flags);
+ if (put)
pm_runtime_put(link->supplier);
}

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