diff options
| -rw-r--r-- | drivers/pci/pci-driver.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index b60fe6737f78..0929ae3e7830 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -264,11 +264,19 @@ static long local_pci_probe(void *_ddi) pm_runtime_get_sync(dev); pci_dev->driver = pci_drv; rc = pci_drv->probe(pci_dev, ddi->id); - if (rc) { + if (!rc) + return rc; + if (rc < 0) { pci_dev->driver = NULL; pm_runtime_put_sync(dev); + return rc; } - return rc; + /* + * Probe function should return < 0 for failure, 0 for success + * Treat values > 0 as success, but warn. + */ + dev_warn(dev, "Driver probe function unexpectedly returned %d\n", rc); + return 0; } static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev, |