[PATCH 07/14] PM / RUNTIME: use atomic_dec_not_zero()
From: Fabian Frederick <hidden>
Date: 2017-01-30 18:48:34
Also in:
lkml
Subsystem:
driver core, kobjects, debugfs and sysfs, hibernation (aka software suspend, aka swsusp), power management core, suspend to ram, the rest · Maintainers:
Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Linus Torvalds
instead of atomic_add_unless(value, -1, 0) Signed-off-by: Fabian Frederick <redacted> --- 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