From: Daniel J Blueman <daniel@quora.org>
Date: Tue, 18 Dec 2012 15:59:33 +0000 (+0800)
Subject: ALSA: HDA: Fix sound resume hang
X-Git-Tag: firefly_0821_release~3680^2~1370^2~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=44728e97c35ef31d649dafbbada665e37176f5da;p=firefly-linux-kernel-4.4.55.git

ALSA: HDA: Fix sound resume hang

Resuming a switcheroo'd HDA controller hangs since the completion
is one-shot (thus works the first time). Fix by using completions
that explictly need rearming, so remain fired before.

Signed-off-by: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 0f3d3db0df71..cca87277baf0 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2876,7 +2876,7 @@ static int azx_free(struct azx *chip)
 	azx_notifier_unregister(chip);
 
 	chip->init_failed = 1; /* to be sure */
-	complete(&chip->probe_wait);
+	complete_all(&chip->probe_wait);
 
 	if (use_vga_switcheroo(chip)) {
 		if (chip->disabled && chip->bus)
@@ -3504,7 +3504,7 @@ static int azx_probe(struct pci_dev *pci,
 		pm_runtime_put_noidle(&pci->dev);
 
 	dev++;
-	complete(&chip->probe_wait);
+	complete_all(&chip->probe_wait);
 	return 0;
 
 out_free: