PM: runtime: Define pm_runtime_put cleanup helper

Alex Williamson · bjorn-helgaas · commit bfa4477751e9 · 2025-04-23T16:05:50.000-05:00
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
@@ -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.

Original file line number	Diff line number	Diff line change
`@@ -466,6 +466,8 @@ static inline int pm_runtime_put(struct device *dev)`
`466`	`466`	`return __pm_runtime_idle(dev, RPM_GET_PUT \| RPM_ASYNC);`
`467`	`467`	`}`
`468`	`468`
	`469`	`+DEFINE_FREE(pm_runtime_put, struct device *, if (_T) pm_runtime_put(_T))`
	`470`	`+`
`469`	`471`	`/**`
`470`	`472`	`* __pm_runtime_put_autosuspend - Drop device usage counter and queue autosuspend if 0.`
`471`	`473`	`* @dev: Target device.`