This is a note to let you know that I've just added the patch titled
ASoC: amd: acp: Fix possible deadlock
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-amd-acp-fix-possible-deadlock.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 5fd980bea8ded7787b3615c9db2984a14b49204d
Author: Daniel Baluta <daniel.baluta@xxxxxxx>
Date: Mon Jan 27 10:34:22 2025 +0200
ASoC: amd: acp: Fix possible deadlock
[ Upstream commit 3ff53862c322aa7bb115d84348d5a641dc905d87 ]
On error path, function acp_i2s_set_tdm_slot returns without releasing
the lock and this could result in potential deadlocks in the future.
Error reported by sparse:
sound/soc/amd/acp/acp-i2s.c:95:12: error: context imbalance in
'acp_i2s_set_tdm_slot' - different lock contexts for basic block
Fixes: cd60dec8994c ("ASoC: amd: acp: Refactor TDM slots selction based on acp revision id")
Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxx>
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Link: https://patch.msgid.link/20250127083422.20406-1-daniel.baluta@xxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/amd/acp/acp-i2s.c b/sound/soc/amd/acp/acp-i2s.c
index 56ce9e4b6accc..92c5ff0deea2c 100644
--- a/sound/soc/amd/acp/acp-i2s.c
+++ b/sound/soc/amd/acp/acp-i2s.c
@@ -181,6 +181,7 @@ static int acp_i2s_set_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask, u32 rx_mas
break;
default:
dev_err(dev, "Unknown chip revision %d\n", chip->acp_rev);
+ spin_unlock_irq(&adata->acp_lock);
return -EINVAL;
}
}
