[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 <b...@decadent.org.uk>

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 <b...@decadent.org.uk>
---
--- 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);