From 8cbb38625364640f390b2df2cda44ff3877fb16d Mon Sep 17 00:00:00 2001
From: Jan Janssen <medhefgo@web.de>
Date: Mon, 14 Nov 2022 14:37:13 +0100
Subject: [PATCH] boot: Do not require a loaded image path

If the device path to text protocol is not available (looking angrily at
Apple) we would fail to boot because we cannot get the loaded image
path. As this is only used for cosmetic purposes, we can just silently
continue.

Fixes: #25363
(cherry picked from commit af7ef648cddeb96da525de2410565d166f75cc96)

Related: #2138081
---
 src/boot/efi/boot.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/src/boot/efi/boot.c b/src/boot/efi/boot.c
index 17d4ec2d09..b490a1d972 100644
--- a/src/boot/efi/boot.c
+++ b/src/boot/efi/boot.c
@@ -471,7 +471,6 @@ static void print_status(Config *config, char16_t *loaded_image_path) {
         _cleanup_free_ char16_t *device_part_uuid = NULL;
 
         assert(config);
-        assert(loaded_image_path);
 
         clear_screen(COLOR_NORMAL);
         console_query_mode(&x_max, &y_max);
@@ -619,7 +618,6 @@ static bool menu_run(
 
         assert(config);
         assert(chosen_entry);
-        assert(loaded_image_path);
 
         EFI_STATUS err;
         UINTN visible_max = 0;
@@ -1478,7 +1476,7 @@ static void config_entry_add_type1(
                         entry->loader = xstra_to_path(value);
 
                         /* do not add an entry for ourselves */
-                        if (loaded_image_path && strcaseeq16(entry->loader, loaded_image_path)) {
+                        if (strcaseeq16(entry->loader, loaded_image_path)) {
                                 entry->type = LOADER_UNDEFINED;
                                 break;
                         }
@@ -1908,12 +1906,11 @@ static ConfigEntry *config_entry_add_loader_auto(
         assert(root_dir);
         assert(id);
         assert(title);
-        assert(loader || loaded_image_path);
 
         if (!config->auto_entries)
                 return NULL;
 
-        if (loaded_image_path) {
+        if (!loader) {
                 loader = L"\\EFI\\BOOT\\BOOT" EFI_MACHINE_TYPE_NAME ".efi";
 
                 /* We are trying to add the default EFI loader here,
@@ -2562,7 +2559,6 @@ static void export_variables(
         char16_t uuid[37];
 
         assert(loaded_image);
-        assert(loaded_image_path);
 
         efivar_set_time_usec(LOADER_GUID, L"LoaderTimeInitUSec", init_usec);
         efivar_set(LOADER_GUID, L"LoaderInfo", L"systemd-boot " GIT_VERSION, 0);
@@ -2591,7 +2587,6 @@ static void config_load_all_entries(
 
         assert(config);
         assert(loaded_image);
-        assert(loaded_image_path);
         assert(root_dir);
 
         config_load_defaults(config, root_dir);
@@ -2676,9 +2671,7 @@ EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) {
         if (err != EFI_SUCCESS)
                 return log_error_status_stall(err, L"Error getting a LoadedImageProtocol handle: %r", err);
 
-        err = device_path_to_str(loaded_image->FilePath, &loaded_image_path);
-        if (err != EFI_SUCCESS)
-                return log_error_status_stall(err, L"Error getting loaded image path: %r", err);
+        (void) device_path_to_str(loaded_image->FilePath, &loaded_image_path);
 
         export_variables(loaded_image, loaded_image_path, init_usec);