From: Oliver Neukum <oliver@neukum.org>
Date: Thu, 10 Feb 2011 14:33:17 +0000 (+0100)
Subject: usb_wwan: fix runtime PM in error case
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3d06bf152abcc3895a0f3afa21d762d84c9aecbc;p=openwrt%2Fstaging%2Fblogic.git

usb_wwan: fix runtime PM in error case

An error in the write code path would permanently disable
runtime PM in this driver

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 7bd06854f872..07cdc6cd1064 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -261,6 +261,7 @@ int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
 				intfdata->in_flight--;
 				spin_unlock_irqrestore(&intfdata->susp_lock,
 						       flags);
+				usb_autopm_put_interface_async(port->serial->interface);
 				continue;
 			}
 		}