From: Scott Wood <scottwood@freescale.com>
Date: Mon, 12 Mar 2007 20:41:45 +0000 (-0600)
Subject: [POWERPC] bootwrapper: Make ft_get_phandle() accept and return NULL.
X-Git-Tag: v2.6.22-rc1~1109^2~183
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8aa72633e65c5c215b0cdd9970642e2a4f9a9a3;p=linux-2.6

[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 971420af08..6c1877358a 100644
--- 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;