[media] gspca: Update / fix various comments wrt workqueue usb_lock usage
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/usb/gspca/sq905.c b/drivers/media/usb/gspca/sq905.c
index 2e05aca..1d99f10 100644
--- a/drivers/media/usb/gspca/sq905.c
+++ b/drivers/media/usb/gspca/sq905.c
@@ -201,14 +201,13 @@
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 we take the gspca
- * usb_lock when performing USB operations. In practice the only thing we need
- * to protect against is the usb_set_interface call that gspca makes during
- * stream_off as 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 sq905_dostream(struct work_struct *work)
{