From: Hui Wang <hui.wang@canonical.com>
Date: Thu, 29 Oct 2020 06:51:30 +0000 (+0800)
Subject: ucm: return error if boot_list is empty
X-Git-Tag: v1.2.5~52
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=2368a95b8f100e0b6fdb332a5118fe6e5af12fb6;p=alsa-lib.git

ucm: return error if boot_list is empty

If bootlist is empty, that means there is no BootSequence defined
in the ucm for this sound card, let set_boot_user() return error,
then alsactl could have chance to use non-ucm ways to initialize the
sound card.

BugLink: https://github.com/alsa-project/alsa-lib/pull/94
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/src/ucm/main.c b/src/ucm/main.c
index 18531c80..3a56bce4 100644
--- a/src/ucm/main.c
+++ b/src/ucm/main.c
@@ -2252,6 +2252,8 @@ static int set_boot_user(snd_use_case_mgr_t *uc_mgr,
 		uc_error("error: wrong value for _boot (%s)", value);
 		return -EINVAL;
 	}
+	if (list_empty(&uc_mgr->boot_list))
+		return -ENOENT;
 	err = execute_sequence(uc_mgr, &uc_mgr->boot_list,
 			       &uc_mgr->value_list, NULL, NULL);
 	if (err < 0) {