[POWERPC] bootwrapper: Make ft_get_phandle() accept and return NULL.

Currently, if ft_get_phandle() is passed NULL it will allocate an entry
for it and return a non-NULL phandle.  This patch makes it simply pass
the NULL through.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/boot/flatdevtree.c b/arch/powerpc/boot/flatdevtree.c
index 971420a..6c18773 100644 (file)
--- a/arch/powerpc/boot/flatdevtree.c
+++ b/arch/powerpc/boot/flatdevtree.c
@@ -40,6 +40,9 @@ static void *ft_get_phandle(struct ft_cxt *cxt, char *node)
 {
        unsigned int i;
 
+       if (!node)
+               return NULL;
+
        for (i = 1; i < cxt->nodes_used; i++)   /* already there? */
                if (cxt->node_tbl[i] == node)
                        return (void *)i;