From 2f1712b275af3ed960b92cd1ed9b99d23c4919a5 Mon Sep 17 00:00:00 2001
From: York Sun <yorksun@freescale.com>
Date: Mon, 8 Oct 2012 07:44:10 +0000
Subject: [PATCH] powerpc/mpc85xx: check number of cores
Panic if the number of cores is more than CONFIG_MAX_CPUS because it will
surely overflow gd structure.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
---
arch/powerpc/cpu/mpc85xx/cpu.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index 26fc84c9aa..40cce1dbda 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -127,6 +127,11 @@ int checkcpu (void)
printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr);
+ if (nr_cores > CONFIG_MAX_CPUS) {
+ panic("\nUnexpected number of cores: %d, max is %d\n",
+ nr_cores, CONFIG_MAX_CPUS);
+ }
+
get_sys_info(&sysinfo);
puts("Clock Configuration:");
--
2.39.5