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From: Michael Ralston <michael@ralston.id.au>
To: tiwai@suse.de, stable@vger.kernel.org, gregkh@linuxfoundation.org
Subject: [PATCH] Revert "ALSA: usb-audio: Drop superfluous interface setup at parsing"
Date: Sat, 14 Jan 2023 17:38:19 +1100	[thread overview]
Message-ID: <5498668.31r3eYUQgx@leatherback> (raw)
In-Reply-To: <167362470314207@kroah.com>

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.

It appears that the original revert patch had spaces instead of tabs so it 
would not apply. Hopefully this fixes that. Please forgive my ignorance if I 
have misunderstood.

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

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:[~2023-01-14  6:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-13 15:45 FAILED: patch "[PATCH] Revert "ALSA: usb-audio: Drop superfluous interface setup at" failed to apply to 6.1-stable tree gregkh
2023-01-14  6:38 ` Michael Ralston [this message]
2023-01-14  9:46   ` [PATCH] Revert "ALSA: usb-audio: Drop superfluous interface setup at parsing" Greg KH

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