On Tue, Sep 03, 2013 at 03:38:15PM -0700, Stephen Hemminger wrote: > While debugging another problem with a PCI driver, I noticed that if > device probe routine returns an error, the kernel will crash when module > is unloaded. It looks like pci_register_driver() sets drv->bus to be PCI > then in the module unload. > > module_unload > my_device_exit_module > pci_unregister_driver > bus_remove_driver > OOPS > > One way to fix this would be to have pci_register_driver clear the bus > flag (it has no reference) if an error was detected. Odd, no other buses do this, why would it matter for PCI? Maybe they just never fail their registering calls. How about putting this in the driver core instead so that all busses get fixed? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
