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ASoC: SOF: topology: Fix memory leak of scontrol->name

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The scontrol->name is allocated with kstrdup, it must be freed before the
scontrol is freed to avoid leaking memory.

The constant leaking happens via sof_widget_unload() path on every module
removal.

Fixes: b5cee8feb1 ("ASoC: SOF: topology: Make control parsing IPC agnostic")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220331114845.32747-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2022-03-31 14:48:45 +03:00 committed by Mark Brown
parent acc72863e0
commit 5708cc2f4b
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1 changed files with 3 additions and 0 deletions
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3
sound/soc/sof/topology.c
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@ -941,11 +941,13 @@ static int sof_control_load(struct snd_soc_component *scomp, int index,
default:
dev_warn(scomp->dev, "control type not supported %d:%d:%d\n",
hdr->ops.get, hdr->ops.put, hdr->ops.info);
kfree(scontrol->name);
kfree(scontrol);
return 0;
}
if (ret < 0) {
kfree(scontrol->name);
kfree(scontrol);
return ret;
}
@ -1380,6 +1382,7 @@ static int sof_widget_unload(struct snd_soc_component *scomp,
}
kfree(scontrol->ipc_control_data);
list_del(&scontrol->list);
kfree(scontrol->name);
kfree(scontrol);
}