diff options
| -rw-r--r-- | drivers/ipack/carriers/tpci200.c | 3 | ||||
| -rw-r--r-- | drivers/ipack/ipack.c | 4 | ||||
| -rw-r--r-- | include/linux/ipack.h | 24 |
3 files changed, 28 insertions, 3 deletions
diff --git a/drivers/ipack/carriers/tpci200.c b/drivers/ipack/carriers/tpci200.c index de5e32151a1e..9b23843dcad4 100644 --- a/drivers/ipack/carriers/tpci200.c +++ b/drivers/ipack/carriers/tpci200.c @@ -572,7 +572,8 @@ static int tpci200_pci_probe(struct pci_dev *pdev, /* Register the carrier in the industry pack bus driver */ tpci200->info->ipack_bus = ipack_bus_register(&pdev->dev, TPCI200_NB_SLOT, - &tpci200_bus_ops); + &tpci200_bus_ops, + THIS_MODULE); if (!tpci200->info->ipack_bus) { dev_err(&pdev->dev, "error registering the carrier on ipack driver\n"); diff --git a/drivers/ipack/ipack.c b/drivers/ipack/ipack.c index d0016ba469ed..c0e7b624ce54 100644 --- a/drivers/ipack/ipack.c +++ b/drivers/ipack/ipack.c @@ -206,7 +206,8 @@ static struct bus_type ipack_bus_type = { }; struct ipack_bus_device *ipack_bus_register(struct device *parent, int slots, - const struct ipack_bus_ops *ops) + const struct ipack_bus_ops *ops, + struct module *owner) { int bus_nr; struct ipack_bus_device *bus; @@ -225,6 +226,7 @@ struct ipack_bus_device *ipack_bus_register(struct device *parent, int slots, bus->parent = parent; bus->slots = slots; bus->ops = ops; + bus->owner = owner; return bus; } EXPORT_SYMBOL_GPL(ipack_bus_register); diff --git a/include/linux/ipack.h b/include/linux/ipack.h index 1888e06ddf64..8bddc3fbdddf 100644 --- a/include/linux/ipack.h +++ b/include/linux/ipack.h @@ -172,6 +172,7 @@ struct ipack_bus_ops { * @ops: bus operations for the mezzanine drivers */ struct ipack_bus_device { + struct module *owner; struct device *parent; int slots; int bus_nr; @@ -189,7 +190,8 @@ struct ipack_bus_device { * available bus device in ipack. */ struct ipack_bus_device *ipack_bus_register(struct device *parent, int slots, - const struct ipack_bus_ops *ops); + const struct ipack_bus_ops *ops, + struct module *owner); /** * ipack_bus_unregister -- unregister an ipack bus @@ -265,3 +267,23 @@ void ipack_put_device(struct ipack_device *dev); .format = (_format), \ .vendor = (vend), \ .device = (dev) + +/** + * ipack_get_carrier - it increase the carrier ref. counter of + * the carrier module + * @dev: mezzanine device which wants to get the carrier + */ +static inline int ipack_get_carrier(struct ipack_device *dev) +{ + return try_module_get(dev->bus->owner); +} + +/** + * ipack_get_carrier - it decrease the carrier ref. counter of + * the carrier module + * @dev: mezzanine device which wants to get the carrier + */ +static inline void ipack_put_carrier(struct ipack_device *dev) +{ + module_put(dev->bus->owner); +} |