[PATCH v2] ASoC: SOF: Fix potential NULL pointer dereference
Cleanup path for sof_prepare_widgets_in_path() should check if unprepare callback exists before calling it, instead it checks if it does not exist. Fix the check.
Fixes: 66344c6d9211 ("ASoC: SOF: Add a prepare op to IPC topology widget ops") Signed-off-by: Amadeusz Sławiński amadeuszx.slawinski@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com
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v2 : Fix Fixes hash, apparently I looked at wrong tree
--- sound/soc/sof/sof-audio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c index 8d740635a4bb..28976098a89e 100644 --- a/sound/soc/sof/sof-audio.c +++ b/sound/soc/sof/sof-audio.c @@ -318,7 +318,7 @@ sof_prepare_widgets_in_path(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget p->walking = false; if (ret < 0) { /* unprepare the source widget */ - if (!widget_ops[widget->id].ipc_unprepare && swidget->prepared) { + if (widget_ops[widget->id].ipc_unprepare && swidget->prepared) { widget_ops[widget->id].ipc_unprepare(swidget); swidget->prepared = false; }
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Amadeusz Sławiński