bootspec: don't log in boot_entries_load_config_auto() about no ESP

Let's do it in the caller instead. That way, logind can stay silent
about it.

Fixes: #11950

src/login/logind-dbus.c

@@ -2798,7 +2798,7 @@ static int boot_loader_entry_exists(const char *id) {
         assert(id);
 
         r = boot_entries_load_config_auto(NULL, NULL, &config);
-        if (r < 0)
+        if (r < 0 && r != -ENOKEY) /* don't complain if no GPT is found, hence skip ENOKEY */
                 return r;
 
         (void) boot_entries_augment_from_loader(&config, true);
@@ -2953,7 +2953,7 @@ static int property_get_boot_loader_entries(
         assert(userdata);
 
         r = boot_entries_load_config_auto(NULL, NULL, &config);
-        if (r < 0)
+        if (r < 0 && r != -ENOKEY) /* don't complain if there's no GPT found */
                 return r;
 
         (void) boot_entries_augment_from_loader(&config, true);

src/shared/bootspec.c

@@ -712,9 +712,7 @@ int boot_entries_load_config_auto(
         }
 
         r = find_esp_and_warn(override_esp_path, false, &esp_where, NULL, NULL, NULL, NULL);
-        if (r == -ENOKEY) /* find_esp_and_warn() doesn't warn about this case */
-                return log_error_errno(r, "Cannot find the ESP partition mount point.");
-        if (r < 0) /* But it logs about all these cases, hence don't log here again */
+        if (r < 0) /* we don't log about ENOKEY here, but propagate it, leaving it to the caller to log */
                 return r;
 
         r = find_xbootldr_and_warn(override_xbootldr_path, false, &xbootldr_where, NULL);

src/systemctl/systemctl.c

@@ -3591,6 +3591,8 @@ static int load_kexec_kernel(void) {
                 return log_error_errno(errno, KEXEC" is not available: %m");
 
         r = boot_entries_load_config_auto(NULL, NULL, &config);
+        if (r == -ENOKEY) /* The call doesn't log about ENOKEY, let's do so here. */
+                return log_error_errno(r, "Cannot find the ESP partition mount point.");
         if (r < 0)
                 return r;