[U-Boot] [PATCH 3/3] post/lib_powerpc/multi.c: fix stack overflow error

[Wolfgang Denk]

The code and comment disagreed: the comment claimed that r6...r31
were copied, and consequently the arrays for "src" and "dst" were
declared with 26 entries, but the actual code ("lmw r5,0(r3)" and
"stmw r5,0(r4)") copied _27_ words (r5 through r31), which resulted
in false "POST cpu Error at multi test" messages.

Fix the comment and the array sizes.

Signed-off-by: Wolfgang Denk <wd at denx.de>
Cc: Anatolij Gustschin <agust at denx.de>
Cc: Stefan Roese <sr at denx.de>
Cc: Kumar Gala <galak at kernel.crashing.org>
Cc: Kim Phillips <kim.phillips at freescale.com>
Cc: Andy Fleming <afleming at gmail.com>
---
 post/lib_powerpc/multi.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/post/lib_powerpc/multi.c b/post/lib_powerpc/multi.c
index b8619de..6642ee3 100644
--- a/post/lib_powerpc/multi.c
+++ b/post/lib_powerpc/multi.c
@@ -27,9 +27,9 @@
  * CPU test
  * Load/store multiple word instructions:	lmw, stmw
  *
- * 26 consecutive words are loaded from a source memory buffer
- * into GPRs r6 through r31. After that, 26 consecutive words are stored
- * from the GPRs r6 through r31 into a target memory buffer. The contents
+ * 27 consecutive words are loaded from a source memory buffer
+ * into GPRs r5 through r31. After that, 27 consecutive words are stored
+ * from the GPRs r5 through r31 into a target memory buffer. The contents
  * of the source and target buffers are then compared.
  */
 
@@ -44,7 +44,7 @@ int cpu_post_test_multi(void)
 {
 	int ret = 0;
 	unsigned int i;
-	ulong src[26], dst[26];
+	ulong src[27], dst[27];
 	int flag = disable_interrupts();
 
 	ulong code[] = {
-- 
1.7.6.4