efi: Small leak on error in runtime map code

commit 86d68a58 upstream.

The "> 0" here should ">= 0" so we free map_entries[0].

Fixes: 926172d4 ('efi: Export EFI runtime memory mapping to sysfs')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

drivers/firmware/efi/runtime-map.c

@@ -170,7 +170,7 @@ int __init efi_runtime_map_init(struct kobject *efi_kobj)
 
 	return 0;
 out_add_entry:
-	for (j = i - 1; j > 0; j--) {
+	for (j = i - 1; j >= 0; j--) {
 		entry = *(map_entries + j);
 		kobject_put(&entry->kobj);
 	}