From patchwork Mon Oct 8 17:44:10 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [U-Boot,07/28] powerpc/mpc85xx: check number of cores From: York Sun X-Patchwork-Id: 190070 Message-Id: <1349718271-26503-7-git-send-email-yorksun@freescale.com> To: Cc: afleming@freescale.com Date: Mon, 8 Oct 2012 10:44:10 -0700 Panic if the number of cores is more than CONFIG_MAX_CPUS because it will surely overflow gd structure. Signed-off-by: York Sun --- 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:");