iio: pressure: zpa2326: handle pm_runtime_get_sync failure

commit d88de040e1df38414fc1e4380be9d0e997ab4d58 upstream.

Calling pm_runtime_get_sync increments the counter even in case of
failure, causing incorrect ref count. Call pm_runtime_put if
pm_runtime_get_sync fails.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Fixes: 03b262f2 ("iio:pressure: initial zpa2326 barometer support")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>