i2c: mux: reg: stop double error reporting

i2c_mux_add_adapter already logs a message on failure.

Reviewed-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Peter Rosin <peda@axentia.se>
This commit is contained in:
Peter Rosin 2017-04-03 10:14:29 +02:00
commit f089236114