linux-kernel - [PATCH AUTOSEL 6.11 02/10] ASoC: audio-graph-card2: Purge absent supplies for device tree nodes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241120140556.1768511-2-sashal@kernel.org>
Date: Wed, 20 Nov 2024 09:05:27 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: John Watts <contact@...kia.org>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	Mark Brown <broonie@...nel.org>,
	Sasha Levin <sashal@...nel.org>,
	lgirdwood@...il.com,
	perex@...ex.cz,
	tiwai@...e.com,
	linux-sound@...r.kernel.org
Subject: [PATCH AUTOSEL 6.11 02/10] ASoC: audio-graph-card2: Purge absent supplies for device tree nodes

From: John Watts <contact@...kia.org>

[ Upstream commit f8da001ae7af0abd9f6250c02c01a1121074ca60 ]

The audio graph card doesn't mark its subnodes such as multi {}, dpcm {}
and c2c {} as not requiring any suppliers. This causes a hang as Linux
waits for these phantom suppliers to show up on boot.
Make it clear these nodes have no suppliers.

Example error message:
[   15.208558] platform 2034000.i2s: deferred probe pending: platform: wait for supplier /sound/multi
[   15.208584] platform sound: deferred probe pending: asoc-audio-graph-card2: parse error

Signed-off-by: John Watts <contact@...kia.org>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Link: https://patch.msgid.link/20241108-graph_dt_fix-v1-1-173e2f9603d6@jookia.org
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/generic/audio-graph-card2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
index 56f7f946882e8..68f1da6931af2 100644
--- a/sound/soc/generic/audio-graph-card2.c
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -270,16 +270,19 @@ static enum graph_type __graph_get_type(struct device_node *lnk)
 
 	if (of_node_name_eq(np, GRAPH_NODENAME_MULTI)) {
 		ret = GRAPH_MULTI;
+		fw_devlink_purge_absent_suppliers(&np->fwnode);
 		goto out_put;
 	}
 
 	if (of_node_name_eq(np, GRAPH_NODENAME_DPCM)) {
 		ret = GRAPH_DPCM;
+		fw_devlink_purge_absent_suppliers(&np->fwnode);
 		goto out_put;
 	}
 
 	if (of_node_name_eq(np, GRAPH_NODENAME_C2C)) {
 		ret = GRAPH_C2C;
+		fw_devlink_purge_absent_suppliers(&np->fwnode);
 		goto out_put;
 	}
 
-- 
2.43.0