wait_for_completion_timeout returns unsigned long not int so an appropriate
variable is declared and the assignment and check fixed up.
Signed-off-by: NNicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: NAlexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>