From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> In case pci_register_driver() fails it error will be 0 in case platform_driver_register() was fine. Also without PCI pci_register_driver() evaluates to 1 which is well, special. If platform_driver_register() returns EINVAL or EBUSY we end up with 0. Acked-by: Mike Frysinger <vapier@xxxxxxxxxx> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> Signed-off-by: Felipe Balbi <balbi@xxxxxx> --- drivers/usb/gadget/net2272.c | 31 ++++++++++++++++++++++++++----- 1 files changed, 26 insertions(+), 5 deletions(-) diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c index 7f1219e..739f564 100644 --- a/drivers/usb/gadget/net2272.c +++ b/drivers/usb/gadget/net2272.c @@ -2611,9 +2611,19 @@ static struct pci_driver net2272_pci_driver = { .remove = __devexit_p(net2272_pci_remove), }; +static int net2272_pci_register(void) +{ + return pci_register_driver(&net2272_pci_driver); +} + +static void net2272_pci_unregister(void) +{ + pci_unregister_driver(&net2272_pci_driver); +} + #else -# define pci_register_driver(x) 1 -# define pci_unregister_driver(x) 1 +static inline int net2272_pci_register(void) { return 0; } +static inline void net2272_pci_unregister(void) { } #endif /*---------------------------------------------------------------------------*/ @@ -2713,14 +2723,25 @@ static struct platform_driver net2272_plat_driver = { static int __init net2272_init(void) { - return pci_register_driver(&net2272_pci_driver) & - platform_driver_register(&net2272_plat_driver); + int ret; + + ret = net2272_pci_register(); + if (ret) + return ret; + ret = platform_driver_register(&net2272_plat_driver); + if (ret) + goto err_pci; + return ret; + +err_pci: + net2272_pci_unregister(); + return ret; } module_init(net2272_init); static void __exit net2272_cleanup(void) { - pci_unregister_driver(&net2272_pci_driver); + net2272_pci_unregister(); platform_driver_unregister(&net2272_plat_driver); } module_exit(net2272_cleanup); -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html