staging:iio:trigger:gpio bug in release of gpio in error path

Also dropped the unneeded gpio.h header.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
Jonathan Cameron 2013-06-02 20:00:00 +01:00
commit b840333e95