Use a local "struct device *dev" for brevity and consistency in DPC driver.
No functional change intended.
Signed-off-by: NDongdong Liu <liudongdong3@huawei.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NKeith Busch <keith.busch@intel.com>