Patch "ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204" has been added to the 4.14-stable tree

This is a note to let you know that I've just added the patch titled

ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204

to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
alsa-usb-audio-add-implicit-fb-quirk-for-behringer-ufx1204.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Lassi Ylikojola <[email protected]>
Date: Fri, 9 Feb 2018 16:51:36 +0200
Subject: ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204

From: Lassi Ylikojola <[email protected]>

commit 5e35dc0338d85ccebacf3f77eca1e5dea73155e8 upstream.

Add quirk to ensure a sync endpoint is properly configured. This patch is a fix for same symptoms on Behringer UFX1204 as patch from Albertto Aquirre on Dec 8 2016 for Axe-Fx II.

---
 sound/usb/pcm.c |    9 +++++++++
 1 file changed, 9 insertions(+)

@@ -357,6 +357,15 @@ static int set_sync_ep_implicit_fb_quirk
 
 		alts = &iface->altsetting[1];
 		goto add_sync_ep;
+	case USB_ID(0x1397, 0x0002):
+		ep = 0x81;
+		iface = usb_ifnum_to_if(dev, 1);
+
+		if (!iface || iface->num_altsetting == 0)
+			return -EINVAL;
+
+		alts = &iface->altsetting[1];
+		goto add_sync_ep;
 
 	}
 	if (attr == USB_ENDPOINT_SYNC_ASYNC &&

Patches currently in stable-queue which might be from [email protected] are

queue-4.14/alsa-usb-audio-add-implicit-fb-quirk-for-behringer-ufx1204.patch