[PATCH 3.2 121/140] of: fdt: Fix return with value in void function

[Ben Hutchings]

3.2.100-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <ben@xxxxxxxxxxxxxxx>

Commit 49e67dd17649 "of: fdt: add missing allocation-failure check"
added a "return NULL" statement in __unflatten_device_tree().  When
applied to the 3.2-stable branch, this introduced a compiler warning
(not an error!) because the function returns void here.

Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -389,7 +389,7 @@ static void __unflatten_device_tree(stru
 	mem = (unsigned long)
 		dt_alloc(size + 4, __alignof__(struct device_node));
 	if (!mem)
-		return NULL;
+		return;
 
 	memset((void *)mem, 0, size);