diff options
Diffstat (limited to 'drivers/firewire/fw-transaction.h')
| -rw-r--r-- | drivers/firewire/fw-transaction.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h index 219094e38542..2ae1b0d6cb7b 100644 --- a/drivers/firewire/fw-transaction.h +++ b/drivers/firewire/fw-transaction.h @@ -19,14 +19,15 @@ #ifndef __fw_transaction_h #define __fw_transaction_h +#include <linux/completion.h> #include <linux/device.h> #include <linux/dma-mapping.h> #include <linux/firewire-constants.h> +#include <linux/kref.h> #include <linux/list.h> #include <linux/spinlock_types.h> #include <linux/timer.h> #include <linux/workqueue.h> -#include <asm/atomic.h> #define TCODE_IS_READ_REQUEST(tcode) (((tcode) & ~1) == 4) #define TCODE_IS_BLOCK_PACKET(tcode) (((tcode) & 1) != 0) @@ -219,7 +220,8 @@ extern struct bus_type fw_bus_type; struct fw_card { const struct fw_card_driver *driver; struct device *device; - atomic_t device_count; + struct kref kref; + struct completion done; int node_id; int generation; @@ -260,6 +262,20 @@ struct fw_card { int bm_generation; }; +static inline struct fw_card *fw_card_get(struct fw_card *card) +{ + kref_get(&card->kref); + + return card; +} + +void fw_card_release(struct kref *kref); + +static inline void fw_card_put(struct fw_card *card) +{ + kref_put(&card->kref, fw_card_release); +} + /* * The iso packet format allows for an immediate header/payload part * stored in 'header' immediately after the packet info plus an |