diff options
| -rw-r--r-- | drivers/lightnvm/pblk-init.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c index 0e37104de596..72ad3e70318c 100644 --- a/drivers/lightnvm/pblk-init.c +++ b/drivers/lightnvm/pblk-init.c @@ -347,23 +347,19 @@ fail_destroy_ws: static int pblk_get_global_caches(void) { - int ret; + int ret = 0; mutex_lock(&pblk_caches.mutex); - if (kref_read(&pblk_caches.kref) > 0) { - kref_get(&pblk_caches.kref); - mutex_unlock(&pblk_caches.mutex); - return 0; - } + if (kref_get_unless_zero(&pblk_caches.kref)) + goto out; ret = pblk_create_global_caches(); - if (!ret) - kref_get(&pblk_caches.kref); + kref_init(&pblk_caches.kref); +out: mutex_unlock(&pblk_caches.mutex); - return ret; } |