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Message-Id: <1454030348-17736-102-git-send-email-kamal@canonical.com>
Date:	Thu, 28 Jan 2016 17:17:19 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Takashi Iwai <tiwai@...e.de>, Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 101/210] ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Takashi Iwai <tiwai@...e.de>

commit c4a359a0049f2e17b012b31e801e96566f6391e5 upstream.

The commit [da6d276957ea: ALSA: usb-audio: Add resume support for
Native Instruments controls] brought a regression where the Native
Instrument audio devices don't get the correct value at update due to
the missing shift at writing.  This patch addresses it.

Fixes: da6d276957ea ('ALSA: usb-audio: Add resume support for Native Instruments controls')
Reported-and-tested-by: Owen Williams <owilliams@...xx.org>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 sound/usb/mixer_quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 48a7450..db9547d 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -803,7 +803,7 @@ static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol,
 		return 0;
 
 	kcontrol->private_value &= ~(0xff << 24);
-	kcontrol->private_value |= newval;
+	kcontrol->private_value |= (unsigned int)newval << 24;
 	err = snd_ni_update_cur_val(list);
 	return err < 0 ? err : 1;
 }
-- 
1.9.1

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