diff options
Diffstat (limited to 'drivers/vfio/mdev/mdev_driver.c')
| -rw-r--r-- | drivers/vfio/mdev/mdev_driver.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/drivers/vfio/mdev/mdev_driver.c b/drivers/vfio/mdev/mdev_driver.c index 7927ed4f1711..ad5b834806ff 100644 --- a/drivers/vfio/mdev/mdev_driver.c +++ b/drivers/vfio/mdev/mdev_driver.c @@ -7,7 +7,6 @@ * Kirti Wankhede <kwankhede@nvidia.com> */ -#include <linux/device.h> #include <linux/iommu.h> #include <linux/mdev.h> @@ -32,7 +31,7 @@ static void mdev_remove(struct device *dev) drv->remove(to_mdev_device(dev)); } -static int mdev_match(struct device *dev, struct device_driver *drv) +static int mdev_match(struct device *dev, const struct device_driver *drv) { /* * No drivers automatically match. Drivers are only bound by explicit @@ -41,13 +40,12 @@ static int mdev_match(struct device *dev, struct device_driver *drv) return 0; } -struct bus_type mdev_bus_type = { +const struct bus_type mdev_bus_type = { .name = "mdev", .probe = mdev_probe, .remove = mdev_remove, .match = mdev_match, }; -EXPORT_SYMBOL_GPL(mdev_bus_type); /** * mdev_register_driver - register a new MDEV driver @@ -57,10 +55,11 @@ EXPORT_SYMBOL_GPL(mdev_bus_type); **/ int mdev_register_driver(struct mdev_driver *drv) { + if (!drv->device_api) + return -EINVAL; + /* initialize common driver fields */ drv->driver.bus = &mdev_bus_type; - - /* register with core */ return driver_register(&drv->driver); } EXPORT_SYMBOL(mdev_register_driver); @@ -74,13 +73,3 @@ void mdev_unregister_driver(struct mdev_driver *drv) driver_unregister(&drv->driver); } EXPORT_SYMBOL(mdev_unregister_driver); - -int mdev_bus_register(void) -{ - return bus_register(&mdev_bus_type); -} - -void mdev_bus_unregister(void) -{ - bus_unregister(&mdev_bus_type); -} |