Helen Mae Koike Fornazier 47dfdb3a88
[media] media: change pipeline validation return error ...
According to the V4L2 API, the VIDIOC_STREAMON ioctl should return EPIPE
if there is a format mismatch in the pipeline configuration.
As the .vidioc_streamon in the v4l2_ioctl_ops usually forwards the error
caused by the v4l2_subdev_link_validate_default (if it is in use), it
should return -EPIPE when it detect the mismatch.
When an entity is connected to a non enabled link,
media_entity_pipeline_start should return -ENOLINK, as the link does not
exist.
Signed-off-by: Helen Mae Koike Fornazier <helen.koike@collabora.co.uk >
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com >
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com >
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