Patch "Revert "ALSA: line6: Only determine control port properties if needed"" has been added to the 4.9-stable tree

Patch "Revert "ALSA: line6: Only determine control port properties if needed"" has been added to the 4.9-stable tree

[gregkh]

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

    Revert "ALSA: line6: Only determine control port properties if needed"

to the 4.9-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:
     revert-alsa-line6-only-determine-control-port-properties-if-needed.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From f3d83317a69e7d658e7c83e24f8b31ac533c39e3 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 7 Feb 2017 09:32:30 +0100
Subject: Revert "ALSA: line6: Only determine control port properties if needed"

From: Takashi Iwai <tiwai@suse.de>

commit f3d83317a69e7d658e7c83e24f8b31ac533c39e3 upstream.

This reverts commit f6a0dd107ad0c8b59d1c9735eea4b8cb9f460949.

The commit caused a regression on LINE6 Transport that has no control
caps.  Although reverting the commit may result back in a spurious
error message for some device again, it's the simplest regression fix,
hence it's taken as is at first.  The further code fix will follow
later.

Fixes: f6a0dd107ad0 ("ALSA: line6: Only determine control port properties if needed")
Reported-by: Igor Zinovev <zinigor@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/usb/line6/driver.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -754,8 +754,9 @@ int line6_probe(struct usb_interface *in
 		goto error;
 	}
 
+	line6_get_interval(line6);
+
 	if (properties->capabilities & LINE6_CAP_CONTROL) {
-		line6_get_interval(line6);
 		ret = line6_init_cap_control(line6);
 		if (ret < 0)
 			goto error;


Patches currently in stable-queue which might be from tiwai@suse.de are

queue-4.9/alsa-seq-don-t-handle-loop-timeout-at-snd_seq_pool_done.patch
queue-4.9/alsa-hda-adding-a-new-nv-hdmi-dp-codec-id-in-the-driver.patch
queue-4.9/revert-alsa-line6-only-determine-control-port-properties-if-needed.patch
queue-4.9/alsa-seq-fix-race-at-creating-a-queue.patch