From 49fa09215c03116449184057f062c6aea2f1d0b4 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jirislaby@gmail.com>
Date: Wed, 11 Mar 2009 21:47:40 +0100
Subject: [PATCH] USB: wusbcore/wa-xfer, fix lock imbalance
Fix locking on one wa_urb_enqueue_b's fail path. There was omitted unlock.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/wusbcore/wa-xfer.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 238a96aee3a1..613a5fc490d3 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -921,8 +921,10 @@ static void wa_urb_enqueue_b(struct wa_xfer *xfer)
result = -ENODEV;
/* FIXME: segmentation broken -- kills DWA */
mutex_lock(&wusbhc->mutex); /* get a WUSB dev */
- if (urb->dev == NULL)
+ if (urb->dev == NULL) {
+ mutex_unlock(&wusbhc->mutex);
goto error_dev_gone;
+ }
wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev);
if (wusb_dev == NULL) {
mutex_unlock(&wusbhc->mutex);
--
2.20.1