PCI: aerdrv: introduce is_error_source

Take core part of find_device_iter() to make a new function
is_error_source() that checks given device has report an error
or not.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
1 file changed