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Laurent Pinchart authored
The graph traversal API (media_entity_graph_walk_*) doesn't support cyclic graphs and will fail to correctly walk a graph when circular links exist. Support circular graph traversal by checking whether an entity has already been visited before pushing it to the stack. Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by:
Sakari Ailus <sakari.ailus@iki.fi> Acked-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
Mauro Carvalho Chehab <m.chehab@samsung.com>
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