diff options
| author | Randy Dunlap <rdunlap@xenotime.net> | 2006-07-09 09:58:25 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-27 04:43:52 +0400 |
| commit | 20d516602c022997feb24a9f1a806fc986b9e4e8 (patch) | |
| tree | cf74447266832d62cdb38e7ca29532c65848b60e | |
| parent | 6397c75cbc4d7dbc3d07278b57c82a47dafb21b5 (diff) | |
| download | linux-20d516602c022997feb24a9f1a806fc986b9e4e8.tar.xz | |
PCIE: check and return bus_register errors
Have pcie_port_bus_register() notice and return errors.
Mark it __must_check so that its caller(s) must check its return value.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/pci/pcie/portdrv.h | 2 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 5 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_pci.c | 9 |
3 files changed, 11 insertions, 5 deletions
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h index 1d317d22ee89..67fcd176babd 100644 --- a/drivers/pci/pcie/portdrv.h +++ b/drivers/pci/pcie/portdrv.h @@ -39,7 +39,7 @@ extern int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state); extern int pcie_port_device_resume(struct pci_dev *dev); #endif extern void pcie_port_device_remove(struct pci_dev *dev); -extern void pcie_port_bus_register(void); +extern int pcie_port_bus_register(void); extern void pcie_port_bus_unregister(void); #endif /* _PORTDRV_H_ */ diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 55c662267868..cf9e810b4bf8 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -6,6 +6,7 @@ * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) */ +#include <linux/compiler.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/kernel.h> @@ -402,9 +403,9 @@ void pcie_port_device_remove(struct pci_dev *dev) pci_disable_msi(dev); } -void pcie_port_bus_register(void) +int __must_check pcie_port_bus_register(void) { - bus_register(&pcie_port_bus_type); + return bus_register(&pcie_port_bus_type); } void pcie_port_bus_unregister(void) diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index 478d0d28f7ad..3284199ce396 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -129,12 +129,17 @@ static struct pci_driver pcie_portdrv = { static int __init pcie_portdrv_init(void) { - int retval = 0; + int retval; - pcie_port_bus_register(); + retval = pcie_port_bus_register(); + if (retval) { + printk(KERN_WARNING "PCIE: bus_register error: %d\n", retval); + goto out; + } retval = pci_register_driver(&pcie_portdrv); if (retval) pcie_port_bus_unregister(); + out: return retval; } |