ASoC: SOF: sof-audio: Fix DSP core put imbalance on widget setup failure

In case the widget setup fails we should only decrement the core usage
count if the sof_widget_free_unlocked() has not been called as part of
the error handling.
sof_widget_free_unlocked() calls snd_sof_dsp_core_put() and the additional
core_put will cause imbalance in core usage count.
Use the existing use_count_decremented to handle this issue.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230914124725.17397-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c
index e7ef770..e5405f8 100644 (file)
--- a/sound/soc/sof/sof-audio.c
+++ b/sound/soc/sof/sof-audio.c
@@ -212,7 +212,8 @@ widget_free:
        sof_widget_free_unlocked(sdev, swidget);
        use_count_decremented = true;
 core_put:
-       snd_sof_dsp_core_put(sdev, swidget->core);
+       if (!use_count_decremented)
+               snd_sof_dsp_core_put(sdev, swidget->core);
 pipe_widget_free:
        if (swidget->id != snd_soc_dapm_scheduler)
                sof_widget_free_unlocked(sdev, swidget->spipe->pipe_widget);