[alsa-devel] [PATCH] ALSA: hda: Drop useless WARN_ON()

[Takashi Iwai]

Since the commit 97cc2ed27e5a ("ALSA: hda - Fix yet another i915
pointer leftover in error path") cleared hdac_acomp pointer, the
WARN_ON() non-NULL check in snd_hdac_i915_register_notifier() may give
a false-positive warning, as the function gets called no matter
whether the component is registered or not.  For fixing it, let's get
rid of the spurious WARN_ON().

Fixes: 97cc2ed27e5a ("ALSA: hda - Fix yet another i915 pointer leftover in error path")
Cc: <stable at vger.kernel.org>
Reported-by: Kouta Okamoto <kouta.okamoto at toshiba.co.jp>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/hda/hdac_i915.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c
index 038a180d3f81..cbe818eda336 100644
--- a/sound/hda/hdac_i915.c
+++ b/sound/hda/hdac_i915.c
@@ -325,7 +325,7 @@ static int hdac_component_master_match(struct device *dev, void *data)
  */
 int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *aops)
 {
-	if (WARN_ON(!hdac_acomp))
+	if (!hdac_acomp)
 		return -ENODEV;
 
 	hdac_acomp->audio_ops = aops;
-- 
2.15.1