* [PATCH 07/14] PM / RUNTIME: use atomic_dec_not_zero()
@ 2017-01-30 18:47 Fabian Frederick
0 siblings, 0 replies; only message in thread
From: Fabian Frederick @ 2017-01-30 18:47 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel, rjw, linux-pm, Fabian Frederick
instead of atomic_add_unless(value, -1, 0)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
drivers/base/power/runtime.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 872eac4..8ed435f 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -603,7 +603,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
if (dev->parent) {
parent = dev->parent;
- atomic_add_unless(&parent->power.child_count, -1, 0);
+ atomic_dec_not_zero(&parent->power.child_count);
}
wake_up_all(&dev->power.wait_queue);
@@ -1116,7 +1116,7 @@ int __pm_runtime_set_status(struct device *dev, unsigned int status)
}
if (parent) {
- atomic_add_unless(&parent->power.child_count, -1, 0);
+ atomic_dec_not_zero(&parent->power.child_count);
notify_parent = !parent->power.ignore_children;
}
goto out_set;
--
2.9.3
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