Re: [PATCH] ASoC: SOF: ipc4-topology: Improve unlocking of a mutex in sof_ipc4_widget_free()
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On 6/10/23 06:36, Markus Elfring wrote:
From: Markus Elfring elfring@users.sourceforge.net Date: Sat, 10 Jun 2023 12:40:09 +0200
Add a jump target so that a call of the function “mutex_unlock” is stored only once in this function implementation.
Signed-off-by: Markus Elfring elfring@users.sourceforge.net
sound/soc/sof/ipc4-topology.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c index a4e1a70b607d..f0fd1dfa384e 100644 --- a/sound/soc/sof/ipc4-topology.c +++ b/sound/soc/sof/ipc4-topology.c @@ -2300,8 +2300,7 @@ static int sof_ipc4_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget if (pipeline->use_chain_dma) { dev_warn(sdev->dev, "use_chain_dma set for scheduler %s", swidget->widget->name);
mutex_unlock(&ipc4_data->pipeline_state_mutex);
return 0;
goto unlock;
}
header = SOF_IPC4_GLB_PIPE_INSTANCE_ID(swidget->instance_id);
@@ -2326,7 +2325,7 @@ static int sof_ipc4_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget if (!pipeline->use_chain_dma) ida_free(&fw_module->m_ida, swidget->instance_id); }
+unlock: mutex_unlock(&ipc4_data->pipeline_state_mutex);
return ret;
The change looks good but I am wondering if we need to print a dev_warn log which is already done on the sof_ipc4_widget_setup() path.
This seems redundant. Ranjani, can we simplify?
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Pierre-Louis Bossart