linux-kernel - [PATCH 3.5 29/96] usb: cdc-wdm: manage_power should always set needs_remote

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Message-Id: <1389623099-18783-30-git-send-email-luis.henriques@canonical.com>
Date:	Mon, 13 Jan 2014 14:23:52 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Bjørn Mork <bjorn@...k.no>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.5 29/96] usb: cdc-wdm: manage_power should always set needs_remote_wakeup

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

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

From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@...k.no>

commit 4144bc861ed7934d56f16d2acd808d44af0fcc90 upstream.

Reported-by: Oliver Neukum <oneukum@...e.de>
Signed-off-by: Bjørn Mork <bjorn@...k.no>
Acked-by: Oliver Neukum <oneukum@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/usb/class/cdc-wdm.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 7c25710..e13be3d 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -826,13 +826,11 @@ static int wdm_manage_power(struct usb_interface *intf, int on)
 {
 	/* need autopm_get/put here to ensure the usbcore sees the new value */
 	int rv = usb_autopm_get_interface(intf);
-	if (rv < 0)
-		goto err;
 
 	intf->needs_remote_wakeup = on;
-	usb_autopm_put_interface(intf);
-err:
-	return rv;
+	if (!rv)
+		usb_autopm_put_interface(intf);
+	return 0;
 }
 
 static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id)
-- 
1.8.3.2

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