[PATCH] ASoC: SOF: Fix potential NULL pointer dereference

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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: 370014c8197a ("ASoC: SOF: Add a prepare op to IPC topology widget ops")
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>
---
 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 cd41d0599cef..789d0a1f1a77 100644
--- a/sound/soc/sof/sof-audio.c
+++ b/sound/soc/sof/sof-audio.c
@@ -323,7 +323,7 @@ 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;
 				}
-- 
2.25.1




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