PM: runtime: Define pm_runtime_put cleanup helper

Define a cleanup helper for use with __free to automatically drop the
device usage count when the pointer goes out of scope.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://patch.msgid.link/20250422230534.2295291-2-alex.williamson@redhat.com

diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 7fb5a459847ef3bdaf89a6b9be8dc0474199c577..69d4b2929ee6e884e095cbdfee817fcaa5db02aa 100644 (file)
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -466,6 +466,8 @@ static inline int pm_runtime_put(struct device *dev)
        return __pm_runtime_idle(dev, RPM_GET_PUT | RPM_ASYNC);
 }
 
+DEFINE_FREE(pm_runtime_put, struct device *, if (_T) pm_runtime_put(_T))
+
 /**
  * __pm_runtime_put_autosuspend - Drop device usage counter and queue autosuspend if 0.
  * @dev: Target device.