From a737abd11ac4eb9f4226fa8c9f1d9b5be12a96c1 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Sat, 5 Jul 2008 15:53:39 +0400 Subject: [PATCH] x86: e820 memmap - add checking for NULL early param Signed-off-by: Cyrill Gorcunov Cc: Cyrill Gorcunov Cc: akpm@linux-foundation.org Cc: andi@firstfloor.org Signed-off-by: Ingo Molnar --- arch/x86/kernel/e820.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 292ebc7fe4d0..66fd5bd78318 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1198,6 +1198,9 @@ static int __init parse_memmap_opt(char *p) char *oldp; u64 start_at, mem_size; + if (!p) + return -EINVAL; + if (!strcmp(p, "exactmap")) { #ifdef CONFIG_CRASH_DUMP /* -- 2.20.1