From 2f1712b275af3ed960b92cd1ed9b99d23c4919a5 Mon Sep 17 00:00:00 2001 From: York Sun 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 Signed-off-by: Andy Fleming --- 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 26fc84c..40cce1d 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:"); -- 2.7.4