787dcd9e4d40d9d59b90544e4c4bdea13ef532b8
On certain Lumia devices video buffer gets page locked when camera is stopped. Subsequent call to video frame map/unmap leads to camera device suspension. As a fix delay camera unload until all mapped video frames are unmapped and return early from video frame map when camera is not active. Task-Id: QTBUG-48672 Change-Id: If547b9d430727bbe0e12cd8c07a30aeff81d13e3 Reviewed-by: Andrew Knight <andrew.knight@intopalo.com>
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