zero cleaning allocation for fix.
unregistering bug fixing.

Signed-off-by: Volokh Konstantin <volok...@gmail.com>
---
 drivers/staging/media/go7007/go7007-driver.c |    2 +-
 drivers/staging/media/go7007/go7007-usb.c    |    2 +-
 drivers/staging/media/go7007/go7007-v4l2.c   |    7 +++++--
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-driver.c 
b/drivers/staging/media/go7007/go7007-driver.c
index ece2dd1..a66e339 100644
--- a/drivers/staging/media/go7007/go7007-driver.c
+++ b/drivers/staging/media/go7007/go7007-driver.c
@@ -571,7 +571,7 @@ struct go7007 *go7007_alloc(struct go7007_board_info 
*board, struct device *dev)
        struct go7007 *go;
        int i;
 
-       go = kmalloc(sizeof(struct go7007), GFP_KERNEL);
+       go = kzalloc(sizeof(struct go7007), GFP_KERNEL);
        if (go == NULL)
                return NULL;
        go->dev = dev;
diff --git a/drivers/staging/media/go7007/go7007-usb.c 
b/drivers/staging/media/go7007/go7007-usb.c
index 5443e25..a6cad15 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1245,7 +1245,6 @@ static void go7007_usb_disconnect(struct usb_interface 
*intf)
        struct urb *vurb, *aurb;
        int i;
 
-       go->status = STATUS_SHUTDOWN;
        usb_kill_urb(usb->intr_urb);
 
        /* Free USB-related structs */
@@ -1269,6 +1268,7 @@ static void go7007_usb_disconnect(struct usb_interface 
*intf)
        kfree(go->hpi_context);
 
        go7007_remove(go);
+       go->status = STATUS_SHUTDOWN;
 }
 
 static struct usb_driver go7007_usb_driver = {
diff --git a/drivers/staging/media/go7007/go7007-v4l2.c 
b/drivers/staging/media/go7007/go7007-v4l2.c
index c184ad3..b8f2eb6 100644
--- a/drivers/staging/media/go7007/go7007-v4l2.c
+++ b/drivers/staging/media/go7007/go7007-v4l2.c
@@ -98,7 +98,7 @@ static int go7007_open(struct file *file)
 
        if (go->status != STATUS_ONLINE)
                return -EBUSY;
-       gofh = kmalloc(sizeof(struct go7007_file), GFP_KERNEL);
+       gofh = kzalloc(sizeof(struct go7007_file), GFP_KERNEL);
        if (gofh == NULL)
                return -ENOMEM;
        ++go->ref_count;
@@ -953,6 +953,7 @@ static int vidioc_streamon(struct file *file, void *priv,
        }
        mutex_unlock(&go->hw_lock);
        mutex_unlock(&gofh->lock);
+       call_all(&go->v4l2_dev, video, s_stream, 1);
 
        return retval;
 }
@@ -968,6 +969,7 @@ static int vidioc_streamoff(struct file *file, void *priv,
        mutex_lock(&gofh->lock);
        go7007_streamoff(go);
        mutex_unlock(&gofh->lock);
+       call_all(&go->v4l2_dev, video, s_stream, 0);
 
        return 0;
 }
@@ -1832,5 +1834,6 @@ void go7007_v4l2_remove(struct go7007 *go)
        mutex_unlock(&go->hw_lock);
        if (go->video_dev)
                video_unregister_device(go->video_dev);
-       v4l2_device_unregister(&go->v4l2_dev);
+       if (go->status != STATUS_SHUTDOWN)
+               v4l2_device_unregister(&go->v4l2_dev);
 }
-- 
1.7.7.6

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