diff --git a/[refs] b/[refs]
index 9258f0ed8c79..0354153a8752 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 19eea630f7c56038dd80fe2f6910c78655bf29c8
+refs/heads/master: 308cf8e13f42f476dfd6552aeff58fdc0788e566
diff --git a/trunk/drivers/pci/setup-bus.c b/trunk/drivers/pci/setup-bus.c
index cb1a027eb552..0959430534b2 100644
--- a/trunk/drivers/pci/setup-bus.c
+++ b/trunk/drivers/pci/setup-bus.c
@@ -299,8 +299,17 @@ static struct resource *find_free_bus_resource(struct pci_bus *bus, unsigned lon
 		r = bus->resource[i];
 		if (r == &ioport_resource || r == &iomem_resource)
 			continue;
-		if (r && (r->flags & type_mask) == type && !r->parent)
-			return r;
+		if (r && (r->flags & type_mask) == type) {
+			if (!r->parent)
+				return r;
+			/*
+			 * if there is no child under that, we should release
+			 * and use it. don't need to reset it, pbus_size_* will
+			 * set it again
+			 */
+			if (!r->child && !release_resource(r))
+				return r;
+		}
 	}
 	return NULL;
 }