[PATCH] of: Fix of platform build on powerpc due to bad of disaply code

[Michal Suchanek <msuchanek@suse.de>]

The commit 2d681d6a23a1 ("of: Make of framebuffer devices unique")
breaks build because of wrong argument to snprintf. That certainly
avoids the runtime error but is not the intended outcome.

Fixes: 2d681d6a23a1 ("of: Make of framebuffer devices unique")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
---
 drivers/of/platform.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index f2a5d679a324..e9dd7371f27a 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -564,10 +564,10 @@ static int __init of_platform_default_populate_init(void)
 		}
 
 		for_each_node_by_type(node, "display") {
-			char *buf[14];
+			char buf[14];
 			if (!of_get_property(node, "linux,opened", NULL) || node == boot_display)
 				continue;
-			ret = snprintf(buf, "of-display-%d", display_number++);
+			ret = snprintf(buf, sizeof(buf), "of-display-%d", display_number++);
 			if (ret >= sizeof(buf))
 				continue;
 			of_platform_device_create(node, buf, NULL);
-- 
2.35.3