From 41c5305cc3d827d2ea686533777a285176ae01a0 Mon Sep 17 00:00:00 2001
From: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Date: Fri, 12 May 2023 14:46:30 +0300
Subject: ASoC: SOF: topology: Fix logic for copying tuples
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Topology could have more instances of the tokens being searched for than
the number of sets that need to be copied. Stop copying token after the
limit of number of token instances has been reached. This worked before
only by chance as we had allocated more size for the tuples array than
the number of actual tokens being parsed.

Fixes: 7006d20e5e9d ("ASoC: SOF: Introduce IPC3 ops")
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230512114630.24439-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
---
 sound/soc/sof/topology.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'sound')

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index d3d536b0a8f5..b80566570512 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -586,6 +586,10 @@ static int sof_copy_tuples(struct snd_sof_dev *sdev, struct snd_soc_tplg_vendor_
 				if (*num_copied_tuples == tuples_size)
 					return 0;
 			}
+
+			/* stop when we've found the required token instances */
+			if (found == num_tokens * token_instance_num)
+				return 0;
 		}
 
 		/* next array */
-- 
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