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From: <gregkh@linuxfoundation.org>
To: tiwai@suse.de, michael@ralston.id.au, stable@vger.kernel.org
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] Revert "ALSA: usb-audio: Drop superfluous interface setup at" failed to apply to 6.1-stable tree
Date: Fri, 13 Jan 2023 16:45:03 +0100	[thread overview]
Message-ID: <167362470314207@kroah.com> (raw)


The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

Possible dependencies:

16f1f838442d ("Revert "ALSA: usb-audio: Drop superfluous interface setup at parsing"")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 16f1f838442dc6430d32d51ddda347b8421ec34b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 4 Jan 2023 16:09:44 +0100
Subject: [PATCH] Revert "ALSA: usb-audio: Drop superfluous interface setup at
 parsing"

This reverts commit ac5e2fb425e1121ceef2b9d1b3ffccc195d55707.

The commit caused a regression on Behringer UMC404HD (and likely
others).  As the change was meant only as a minor optimization, it's
better to revert it to address the regression.

Reported-and-tested-by: Michael Ralston <michael@ralston.id.au>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/CAC2975JXkS1A5Tj9b02G_sy25ZWN-ys+tc9wmkoS=qPgKCogSg@mail.gmail.com
Link: https://lore.kernel.org/r/20230104150944.24918-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index f75601ca2d52..f10f4e6d3fb8 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -1222,6 +1222,12 @@ static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip,
 			if (err < 0)
 				return err;
 		}
+
+		/* try to set the interface... */
+		usb_set_interface(chip->dev, iface_no, 0);
+		snd_usb_init_pitch(chip, fp);
+		snd_usb_init_sample_rate(chip, fp, fp->rate_max);
+		usb_set_interface(chip->dev, iface_no, altno);
 	}
 	return 0;
 }


             reply	other threads:[~2023-01-13 15:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-13 15:45 gregkh [this message]
2023-01-14  6:38 ` [PATCH] Revert "ALSA: usb-audio: Drop superfluous interface setup at parsing" Michael Ralston
2023-01-14  9:46   ` Greg KH

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