ALSA: HDA: change hd-audio as freezable workqueue

bug 921335

Change-Id: Ie5810536f1693a93c365a8cd9a51e4e9906d8c1a
Signed-off-by: Haley Teng <[email protected]>
Reviewed-on: http://git-master/r/74904
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sachin Nikam <[email protected]>
Reviewed-by: Varun Wadekar <[email protected]>
Reviewed-by: Nitin Kumbhar <[email protected]>
Reviewed-by: Bharat Nihalani <[email protected]>
Reviewed-on: http://git-master/r/75546
Tested-by: Varun Wadekar <[email protected]>

Author: Haley Teng

sound/pci/hda/hda_codec.c

@@ -765,7 +765,7 @@ int /*__devinit*/ snd_hda_bus_new(struct snd_card *card,
 
 	snprintf(bus->workq_name, sizeof(bus->workq_name),
 		 "hd-audio%d", card->number);
-	bus->workq = create_singlethread_workqueue(bus->workq_name);
+	bus->workq = create_freezable_workqueue(bus->workq_name);
 	if (!bus->workq) {
 		snd_printk(KERN_ERR "cannot create workqueue %s\n",
 			   bus->workq_name);