diff options
| author | weiyufeng <weiyufeng@kylinos.cn> | 2024-08-06 09:50:50 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-08-06 22:16:57 +0300 |
| commit | 87d5403378cccc557af9e02a8a2c8587ad8b7e9a (patch) | |
| tree | 6d253f100de0c80a64d7d35277a52cd3541fc5ae /drivers/pci/hotplug | |
| parent | 5d8491ae3b8083029ed58ae2aba66cdb70617d4d (diff) | |
| download | linux-87d5403378cccc557af9e02a8a2c8587ad8b7e9a.tar.xz | |
PCI: cpqphp: Use PCI_POSSIBLE_ERROR() to check config reads
Use PCI_POSSIBLE_ERROR() to check the response we get when we read data
from hardware. This unifies PCI error response checking and makes error
checks consistent and easier to find.
Link: https://lore.kernel.org/r/20240806065050.28725-1-412574090@163.com
Signed-off-by: weiyufeng <weiyufeng@kylinos.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/hotplug')
| -rw-r--r-- | drivers/pci/hotplug/cpqphp_pci.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c index e9f1fb333a71..718bc6cf12cb 100644 --- a/drivers/pci/hotplug/cpqphp_pci.c +++ b/drivers/pci/hotplug/cpqphp_pci.c @@ -138,7 +138,7 @@ static int PCI_RefinedAccessConfig(struct pci_bus *bus, unsigned int devfn, u8 o if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, &vendID) == -1) return -1; - if (vendID == 0xffffffff) + if (PCI_POSSIBLE_ERROR(vendID)) return -1; return pci_bus_read_config_dword(bus, devfn, offset, value); } @@ -253,7 +253,7 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num *dev_num = tdevice; ctrl->pci_bus->number = tbus; pci_bus_read_config_dword(ctrl->pci_bus, *dev_num, PCI_VENDOR_ID, &work); - if (!nobridge || (work == 0xffffffff)) + if (!nobridge || PCI_POSSIBLE_ERROR(work)) return 0; dbg("bus_num %d devfn %d\n", *bus_num, *dev_num); |