[U-Boot] [PATCH 07/28] powerpc/mpc85xx: check number of cores
York Sun
yorksun at freescale.com
Mon Oct 8 19:44:10 CEST 2012
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 at 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 515dd41..11b83d2 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:");
--
1.7.9.5
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