Staging: vt6655: use for_each_pci_dev()

Use for_each_pci_dev() to simplify the code.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 0d697d0..d498442 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -3655,7 +3655,7 @@
     case SYS_DOWN:
     case SYS_HALT:
     case SYS_POWER_OFF:
-        while ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
+	for_each_pci_dev(pdev) {
             if(pci_dev_driver(pdev) == &device_driver) {
                 if (pci_get_drvdata(pdev))
                     viawget_suspend(pdev, PMSG_HIBERNATE);