X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Farch%2Fx86%2Fplatform%2Fefi%2Fefi.c;h=841ea05e1b02c2680b338cdb77da9f9e933840a5;hb=fdb8b20906f3546ba6c2f9f0686d8a5189516ba3;hp=02744df576d52588a35308998ecc1a138435012e;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

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"))