From: Ville Syrjälä ville.syrjala@linux.intel.com
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@suse.de Cc: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- 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);