From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Clear the notify function pointer in the platform data before we tear
down the driver. Otherwise i915 would end up calling a stale function
pointer and possibly explode.
Cc: Takashi Iwai <tiwai@xxxxxxx>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
sound/x86/intel_hdmi_audio.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index bfac6f21ae5e..5b89662493c9 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1665,6 +1665,11 @@ static int __maybe_unused hdmi_lpe_audio_resume(struct device *dev)
static void hdmi_lpe_audio_free(struct snd_card *card)
{
struct snd_intelhad *ctx = card->private_data;
+ struct intel_hdmi_lpe_audio_pdata *pdata = ctx->dev->platform_data;
+
+ spin_lock_irq(&pdata->lpe_audio_slock);
+ pdata->notify_audio_lpe = NULL;
+ spin_unlock_irq(&pdata->lpe_audio_slock);
cancel_work_sync(&ctx->hdmi_audio_wq);
--
2.10.2
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