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authorTakashi Iwai <tiwai@suse.de>2016-03-29 12:29:24 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-25 14:22:16 +0100
commitef24d642e92ad2216bb0f70a4307c582f9400732 (patch)
tree998828d5279ffbff8fb562d6bb182c9ae65bcf43 /sound/hda
parent7f3e85d820fd170f9cb94a8a036c824cf1b29832 (diff)
ALSA: hda - Clear the leftover component assignment at snd_hdac_i915_exit()
commit faafd03d23c913633d2ef7e6ffebdce01b164409 upstream. 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> Cc: Kouta Okamoto <kouta.okamoto@toshiba.co.jp> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/hda')
-rw-r--r--sound/hda/hdac_i915.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c
index 8fef1b8d1fd8..166d2eb8fd6b 100644
--- a/sound/hda/hdac_i915.c
+++ b/sound/hda/hdac_i915.c
@@ -273,6 +273,7 @@ int snd_hdac_i915_exit(struct hdac_bus *bus)
kfree(acomp);
bus->audio_component = NULL;
+ hdac_acomp = NULL;
return 0;
}