diff options
| -rw-r--r-- | drivers/infiniband/core/rdma_core.c | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c index 18918f463361..b6eda2fb0911 100644 --- a/drivers/infiniband/core/rdma_core.c +++ b/drivers/infiniband/core/rdma_core.c @@ -465,7 +465,7 @@ alloc_begin_fd_uobject(const struct uverbs_api_object *obj, fd_type = container_of(obj->type_attrs, struct uverbs_obj_fd_type, type); - if (WARN_ON(fd_type->fops->release != &uverbs_uobject_fd_release && + if (WARN_ON(fd_type->fops && fd_type->fops->release != &uverbs_uobject_fd_release && fd_type->fops->release != &uverbs_async_event_release)) { ret = ERR_PTR(-EINVAL); goto err_fd; @@ -477,14 +477,16 @@ alloc_begin_fd_uobject(const struct uverbs_api_object *obj, goto err_fd; } - /* Note that uverbs_uobject_fd_release() is called during abort */ - filp = anon_inode_getfile(fd_type->name, fd_type->fops, NULL, - fd_type->flags); - if (IS_ERR(filp)) { - ret = ERR_CAST(filp); - goto err_getfile; + if (fd_type->fops) { + /* Note that uverbs_uobject_fd_release() is called during abort */ + filp = anon_inode_getfile(fd_type->name, fd_type->fops, NULL, + fd_type->flags); + if (IS_ERR(filp)) { + ret = ERR_CAST(filp); + goto err_getfile; + } + uobj->object = filp; } - uobj->object = filp; uobj->id = new_fd; return uobj; @@ -561,7 +563,9 @@ static void alloc_abort_fd_uobject(struct ib_uobject *uobj) { struct file *filp = uobj->object; - fput(filp); + if (filp) + fput(filp); + put_unused_fd(uobj->id); } @@ -628,11 +632,14 @@ static void alloc_commit_fd_uobject(struct ib_uobject *uobj) /* This shouldn't be used anymore. Use the file object instead */ uobj->id = 0; - /* - * NOTE: Once we install the file we loose ownership of our kref on - * uobj. It will be put by uverbs_uobject_fd_release() - */ - filp->private_data = uobj; + if (!filp->private_data) { + /* + * NOTE: Once we install the file we loose ownership of our kref on + * uobj. It will be put by uverbs_uobject_fd_release() + */ + filp->private_data = uobj; + } + fd_install(fd, filp); } |