mm/gup: do not return 0 from pin_user_pages_fast() for bad args
JIRA: https://issues.redhat.com/browse/RHEL-38622
Signed-off-by: Paulo Alcantara paalcant@redhat.com
JIRA: https://issues.redhat.com/browse/RHEL-38622
Signed-off-by: Paulo Alcantara paalcant@redhat.com