Wolfram Sang 8c9312a925 i2c: add helper to check if a client has a driver attached ...

As a preparation for an API conversion, factor out something frequently
used in the media subsystem. As an improvement, it bails out on both,
NULL and ERRPTR to handle the old and new API.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

2019-12-11 08:39:07 +01:00

37 KiB

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