diff options
Diffstat (limited to 'kernel/arch/x86/platform')
| -rw-r--r-- | kernel/arch/x86/platform/efi/efi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/arch/x86/platform/efi/efi.c b/kernel/arch/x86/platform/efi/efi.c index 02744df57..841ea05e1 100644 --- a/kernel/arch/x86/platform/efi/efi.c +++ b/kernel/arch/x86/platform/efi/efi.c @@ -946,6 +946,11 @@ u64 efi_mem_attributes(unsigned long phys_addr) static int __init arch_parse_efi_cmdline(char *str) { + if (!str) { + pr_warn("need at least one option\n"); + return -EINVAL; + } + if (parse_option_str(str, "old_map")) set_bit(EFI_OLD_MEMMAP, &efi.flags); if (parse_option_str(str, "debug")) |