hp-wmi: add error handling for hp_wmi_init

Current implementation in hp_wmi_init does not check any error and always
return success.
This patch properly handles recource reclaim and return err in error path.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
1 file changed