sound fixes for 4.9-rc6

Three trivial fixes: a regression fix for ASRock mobo, a
 use-after-free fix at hot-unplug of USB-audio, and a quirk for new
 Thinkpad models.
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Merge tag 'sound-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Three trivial fixes:

  A regression fix for ASRock mobo, a use-after-free fix at hot-unplug
  of USB-audio, and a quirk for new Thinkpad models"

* tag 'sound-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Fix use-after-free of usb_device at disconnect
  ALSA: hda - Fix mic regression by ASRock mobo fixup
  ALSA: hda - add a new condition to check if it is thinkpad

sound/pci/hda/patch_realtek.c

@@ -6907,8 +6907,6 @@ static const struct hda_fixup alc662_fixups[] = {
 		.v.pins = (const struct hda_pintbl[]) {
 			{ 0x15, 0x40f000f0 }, /* disabled */
 			{ 0x16, 0x40f000f0 }, /* disabled */
-			{ 0x18, 0x01014011 }, /* LO */
-			{ 0x1a, 0x01014012 }, /* LO */
 			{ }
 		}
 	},

sound/pci/hda/thinkpad_helper.c

@@ -13,7 +13,8 @@ static void (*old_vmaster_hook)(void *, int);
 static bool is_thinkpad(struct hda_codec *codec)
 {
 	return (codec->core.subsystem_id >> 16 == 0x17aa) &&
-	       (acpi_dev_found("LEN0068") || acpi_dev_found("IBM0068"));
+	       (acpi_dev_found("LEN0068") || acpi_dev_found("LEN0268") ||
+		acpi_dev_found("IBM0068"));
 }
 
 static void update_tpacpi_mute_led(void *private_data, int enabled)

sound/usb/card.c

@@ -315,6 +315,7 @@ static int snd_usb_audio_free(struct snd_usb_audio *chip)
 		snd_usb_endpoint_free(ep);
 
 	mutex_destroy(&chip->mutex);
+	if (!atomic_read(&chip->shutdown))
 		dev_set_drvdata(&chip->dev->dev, NULL);
 	kfree(chip);
 	return 0;