discover/boot: Fix talloc parent for resource URLs

The pb_urls for the boot resources use 'opt' as the talloc parent but
this may be NULL, for example if this is a user-created boot option.
Move the boot_task initialisation so it can be used as the talloc parent
instead.

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>

diff --git a/discover/boot.c b/discover/boot.c
index ed67cd502ca9c22c4fdbeaa3107e5b16707d467e..91fc46d642ebbc11cea7e35291c9189cddd18267 100644 (file)
--- a/discover/boot.c
+++ b/discover/boot.c
@@ -526,25 +526,31 @@ struct boot_task *boot(void *ctx, struct discover_boot_option *opt,
        update_status(status_fn, status_arg, STATUS_INFO,
                        _("Booting %s"), boot_desc);
 
+       boot_task = talloc_zero(ctx, struct boot_task);
+       boot_task->dry_run = dry_run;
+       boot_task->status_fn = status_fn;
+       boot_task->status_arg = status_arg;
+
        if (cmd && cmd->boot_image_file) {
-               image = pb_url_parse(opt, cmd->boot_image_file);
+               image = pb_url_parse(boot_task, cmd->boot_image_file);
        } else if (opt && opt->boot_image) {
                image = opt->boot_image->url;
        } else {
                pb_log_fn("no image specified\n");
                update_status(status_fn, status_arg, STATUS_ERROR,
                                _("Boot failed: no image specified"));
+               talloc_free(boot_task);
                return NULL;
        }
 
        if (cmd && cmd->initrd_file) {
-               initrd = pb_url_parse(opt, cmd->initrd_file);
+               initrd = pb_url_parse(boot_task, cmd->initrd_file);
        } else if (opt && opt->initrd) {
                initrd = opt->initrd->url;
        }
 
        if (cmd && cmd->dtb_file) {
-               dtb = pb_url_parse(opt, cmd->dtb_file);
+               dtb = pb_url_parse(boot_task, cmd->dtb_file);
        } else if (opt && opt->dtb) {
                dtb = opt->dtb->url;
        }
@@ -554,10 +560,6 @@ struct boot_task *boot(void *ctx, struct discover_boot_option *opt,
                setenv("https_proxy", opt->proxy, 1);
        }
 
-       boot_task = talloc_zero(ctx, struct boot_task);
-       boot_task->dry_run = dry_run;
-       boot_task->status_fn = status_fn;
-       boot_task->status_arg = status_arg;
        list_init(&boot_task->resources);
 
        lockdown_type = lockdown_status();