diff options
Diffstat (limited to 'drivers/media/usb/gspca/sq905c.c')
| -rw-r--r-- | drivers/media/usb/gspca/sq905c.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/media/usb/gspca/sq905c.c b/drivers/media/usb/gspca/sq905c.c index 784620c102b1..410cdcbb55d4 100644 --- a/drivers/media/usb/gspca/sq905c.c +++ b/drivers/media/usb/gspca/sq905c.c @@ -123,15 +123,13 @@ static int sq905c_read(struct gspca_dev *gspca_dev, u16 command, u16 index, return 0; } -/* This function is called as a workqueue function and runs whenever the camera +/* + * This function is called as a workqueue function and runs whenever the camera * is streaming data. Because it is a workqueue function it is allowed to sleep * so we can use synchronous USB calls. To avoid possible collisions with other - * threads attempting to use the camera's USB interface the gspca usb_lock is - * used when performing the one USB control operation inside the workqueue, - * which tells the camera to close the stream. In practice the only thing - * which needs to be protected against is the usb_set_interface call that - * gspca makes during stream_off. Otherwise the camera doesn't provide any - * controls that the user could try to change. + * threads attempting to use gspca_dev->usb_buf we take the usb_lock when + * performing USB operations using it. In practice we don't really need this + * as the camera doesn't provide any controls. */ static void sq905c_dostream(struct work_struct *work) { |