linux-kernel - [PATCH 6.0 398/862] ASoC: SOF: ipc4-topology: Free the ida when IPC fails in sof_ipc4_widget

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Date:   Wed, 19 Oct 2022 10:28:05 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.0 398/862] ASoC: SOF: ipc4-topology: Free the ida when IPC fails in sof_ipc4_widget_setup()

From: Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>

[ Upstream commit 61eb0add28023119773d6aab8f402e149473920c ]

The allocated ida needs to be freed up if the IPC message fails since
next time when we try again to set up the widget we are going to try to
allocate another ID and given enough tries, we are going to run out of
unique IDs.

Fixes: 711d0427c713 ("ASoC: SOF: ipc4-topology: move ida allocate/free to widget_setup/free")

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Link: https://lore.kernel.org/r/20220921112751.9253-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/sof/ipc4-topology.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index 64929dc9af39..340d92452d7c 100644
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -1544,9 +1544,16 @@ static int sof_ipc4_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget
 	msg->data_ptr = ipc_data;
 
 	ret = sof_ipc_tx_message(sdev->ipc, msg, ipc_size, NULL, 0);
-	if (ret < 0)
+	if (ret < 0) {
 		dev_err(sdev->dev, "failed to create module %s\n", swidget->widget->name);
 
+		if (swidget->id != snd_soc_dapm_scheduler) {
+			struct sof_ipc4_fw_module *fw_module = swidget->module_info;
+
+			ida_free(&fw_module->m_ida, swidget->instance_id);
+		}
+	}
+
 	return ret;
 }
 
-- 
2.35.1