V4L/DVB: hdpvr: Fixes probing function

In the hdpvr_probe () function, when an error occurs while probing the device,
the workqueue created by the create_single_thread () call is not properly
destroyed.

Signed-off-by: Perceval Anichini <perceval@trilogic.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/media/video/hdpvr/hdpvr-core.c b/drivers/media/video/hdpvr/hdpvr-core.c
index 830d47b05e1d..0cae5b82e1a2 100644
--- a/drivers/media/video/hdpvr/hdpvr-core.c
+++ b/drivers/media/video/hdpvr/hdpvr-core.c
@@ -286,6 +286,8 @@ static int hdpvr_probe(struct usb_interface *interface,
                 goto error;
         }
 
+        dev->workqueue = 0;
+
         /* register v4l2_device early so it can be used for printks */
         if (v4l2_device_register(&interface->dev, &dev->v4l2_dev)) {
                 err("v4l2_device_register failed");
@@ -380,6 +382,9 @@ static int hdpvr_probe(struct usb_interface *interface,
 
 error:
         if (dev) {
+                /* Destroy single thread */
+                if (dev->workqueue)
+                        destroy_workqueue(dev->workqueue);
                 /* this frees allocated memory */
                 hdpvr_delete(dev);
         }