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authorJiri Slaby <jirislaby@gmail.com>2009-03-11 21:47:40 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2009-03-17 22:01:29 +0100
commit49fa09215c03116449184057f062c6aea2f1d0b4 (patch)
tree7323170750f671c2f2a8f18444a9861cf1455115 /drivers
parentUSB: misc/vstusb, fix lock imbalance (diff)
downloadlinux-49fa09215c03116449184057f062c6aea2f1d0b4.tar.xz
linux-49fa09215c03116449184057f062c6aea2f1d0b4.zip
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/wusbcore/wa-xfer.c4
1 files changed, 3 insertions, 1 deletions
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);