diff options
| -rw-r--r-- | arch/x86/kernel/e820.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 292ebc7..66fd5bd 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 /* |