linux-kernel - [PATCH 4.11 43/78] ALSA: usb-audio: fix Amanero Combo384 quirk on big-endian hosts

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Date:   Mon, 19 Jun 2017 23:15:43 +0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jussi Laako <jussi@...arnerd.net>,
        Johan Hovold <johan@...nel.org>, Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 4.11 43/78] ALSA: usb-audio: fix Amanero Combo384 quirk on big-endian hosts

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

------------------

From: Johan Hovold <johan@...nel.org>

commit f83914fdfcc3ecb62a5a83eeb609ff59a9c2052d upstream.

Add missing endianness conversion when using the USB device-descriptor
bcdDevice field when applying the Amanero Combo384 (endianness!) quirk.

Fixes: 3eff682d765b ("ALSA: usb-audio: Support both DSD LE/BE Amanero firmware versions")
Cc: Jussi Laako <jussi@...arnerd.net>
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/usb/quirks.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1364,7 +1364,7 @@ u64 snd_usb_interface_dsd_format_quirks(
 	/* Amanero Combo384 USB interface with native DSD support */
 	case USB_ID(0x16d0, 0x071a):
 		if (fp->altsetting == 2) {
-			switch (chip->dev->descriptor.bcdDevice) {
+			switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) {
 			case 0x199:
 				return SNDRV_PCM_FMTBIT_DSD_U32_LE;
 			case 0x19b: