diff options
Diffstat (limited to 'drivers/ieee1394/csr1212.h')
| -rw-r--r-- | drivers/ieee1394/csr1212.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/ieee1394/csr1212.h b/drivers/ieee1394/csr1212.h index df909ce663045..043039fc63ec3 100644 --- a/drivers/ieee1394/csr1212.h +++ b/drivers/ieee1394/csr1212.h @@ -32,6 +32,7 @@ #include <linux/types.h> #include <linux/slab.h> +#include <asm/atomic.h> #define CSR1212_MALLOC(size) kmalloc((size), GFP_KERNEL) #define CSR1212_FREE(ptr) kfree(ptr) @@ -149,7 +150,7 @@ struct csr1212_keyval { struct csr1212_directory directory; } value; struct csr1212_keyval *associate; - int refcnt; + atomic_t refcnt; /* used in generating and/or parsing CSR image */ struct csr1212_keyval *next, *prev; /* flat list of CSR elements */ @@ -350,7 +351,8 @@ csr1212_get_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv); * need for code to retain a keyval that has been parsed. */ static inline void csr1212_keep_keyval(struct csr1212_keyval *kv) { - kv->refcnt++; + atomic_inc(&kv->refcnt); + smp_mb__after_atomic_inc(); } |