media: v4l: async: Ensure only unique fwnodes are registered to notifiers

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While registering a notifier, check that each newly added fwnode is
unique, and return an error if it is not. Also check that a newly added
notifier does not have the same fwnodes twice.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

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Sakari Ailus 2017-09-20 03:51:54 -04:00 • committed by Mauro Carvalho Chehab

parent 2cab00bb07

commit 466cae66ea

1 changed files with 79 additions and 7 deletions

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drivers/media/v4l2-core/v4l2-async.c

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