diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 887e6bd..741023e 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -653,7 +653,6 @@
 static int pci_pm_prepare(struct device *dev)
 {
 	struct device_driver *drv = dev->driver;
-	int error = 0;
 
 	/*
 	 * Devices having power.ignore_children set may still be necessary for
@@ -662,10 +661,12 @@
 	if (dev->power.ignore_children)
 		pm_runtime_resume(dev);
 
-	if (drv && drv->pm && drv->pm->prepare)
-		error = drv->pm->prepare(dev);
-
-	return error;
+	if (drv && drv->pm && drv->pm->prepare) {
+		int error = drv->pm->prepare(dev);
+		if (error)
+			return error;
+	}
+	return pci_dev_keep_suspended(to_pci_dev(dev));
 }