sd-boot: don't dereference NULL ptr if loaded_image_path is NULL

In a follow-up commit we'd like to invoke config_entry_add_from_file()
on partitions that are not the ESP, let's prepare fpr that and allow
loaded_image_path to be passed as NULL.

diff --git a/src/boot/efi/boot.c b/src/boot/efi/boot.c
index 909e4b0..35c649f 100644 (file)
--- a/src/boot/efi/boot.c
+++ b/src/boot/efi/boot.c
@@ -1316,7 +1316,7 @@ static VOID config_entry_add_from_file(
                         entry->loader = stra_to_path(value);
 
                         /* do not add an entry for ourselves */
-                        if (StriCmp(entry->loader, loaded_image_path) == 0) {
+                        if (loaded_image_path && StriCmp(entry->loader, loaded_image_path) == 0) {
                                 entry->type = LOADER_UNDEFINED;
                                 break;
                         }