V4L/DVB (6848): bttv: check pci_register_driver() error
Check pci_register_driver() error in module_init.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index eb2c12e..e04113f 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -4404,14 +4404,17 @@
printk(KERN_WARNING "bttv: bus_register error: %d\n", ret);
return ret;
}
- return pci_register_driver(&bttv_pci_driver);
+ ret = pci_register_driver(&bttv_pci_driver);
+ if (ret < 0)
+ bus_unregister(&bttv_sub_bus_type);
+
+ return ret;
}
static void __exit bttv_cleanup_module(void)
{
pci_unregister_driver(&bttv_pci_driver);
bus_unregister(&bttv_sub_bus_type);
- return;
}
module_init(bttv_init_module);