From 2fe08216fda33bbc1f80133b8fd560ffd094b987 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?= <amadeuszx.slawinski@linux.intel.com>
Date: Thu, 2 Jun 2022 15:57:57 +0200
Subject: [PATCH] ASoC: SOF: Fix potential NULL pointer dereference
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Git-commit: 2fe08216fda33bbc1f80133b8fd560ffd094b987
Patch-mainline: v5.19-rc2
References: jsc#PED-850
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.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220602135757.3335351-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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;
}
--
2.35.3