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When the new allocation code was introduced a stray pointer to iio_dev structure was left in the chip state structure. This was never set but was then registered with the core. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>