ALSA: hda - Clear the leftover component assignment at snd_hdac_i915_exit()
The commit [d745f5e7b8b2: ALSA: hda - Add the pin / port mapping on
Intel ILK and VLV] introduced a WARN_ON() to check the pointer for
avoiding the double initializations. But hdac_acomp pointer wasn't
cleared at snd_hdac_i915_exit(), thus after reloading the HD-audio
driver, it may result in the false positive warning. This patch makes
sure to clear the leftover pointer at exit.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94736
Reported-by: Daniela Doras-prodan <daniela.doras-prodan@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c
index 750a4ea..ae0f305 100644
--- a/sound/hda/hdac_i915.c
+++ b/sound/hda/hdac_i915.c
@@ -372,6 +372,7 @@
kfree(acomp);
bus->audio_component = NULL;
+ hdac_acomp = NULL;
return 0;
}