diff options
| -rw-r--r-- | arch/s390/pci/pci.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 51d16f1fb5ea..6a054bf83eb0 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -405,20 +405,28 @@ static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) { struct zpci_dev *zdev = get_zdev_by_bus(bus); + int ret; if (!zdev || devfn != ZPCI_DEVFN) - return 0; - return zpci_cfg_load(zdev, where, val, size); + ret = -ENODEV; + else + ret = zpci_cfg_load(zdev, where, val, size); + + return ret; } static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) { struct zpci_dev *zdev = get_zdev_by_bus(bus); + int ret; if (!zdev || devfn != ZPCI_DEVFN) - return 0; - return zpci_cfg_store(zdev, where, val, size); + ret = -ENODEV; + else + ret = zpci_cfg_store(zdev, where, val, size); + + return ret; } static struct pci_ops pci_root_ops = { |