linux-kernel - [PATCH 4.9 51/60] Revert "ALSA: line6: Only determine control port properties if needed"

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Message-Id: <20170213130340.223445690@linuxfoundation.org>
Date:   Mon, 13 Feb 2017 05:04:23 -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, Igor Zinovev <zinigor@...il.com>,
        Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 4.9 51/60] Revert "ALSA: line6: Only determine control port properties if needed"

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

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

From: Takashi Iwai <tiwai@...e.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@...il.com>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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;