diff options
Diffstat (limited to 'drivers/infiniband/core/uverbs_main.c')
| -rw-r--r-- | drivers/infiniband/core/uverbs_main.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index e05bbb213d2c..082d9c75bf89 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -79,6 +79,7 @@ static DEFINE_SPINLOCK(map_lock); static DECLARE_BITMAP(dev_map, IB_UVERBS_MAX_DEVICES); static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file, + struct ib_device *ib_dev, const char __user *buf, int in_len, int out_len) = { [IB_USER_VERBS_CMD_GET_CONTEXT] = ib_uverbs_get_context, @@ -119,6 +120,7 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file, }; static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file, + struct ib_device *ib_dev, struct ib_udata *ucore, struct ib_udata *uhw) = { [IB_USER_VERBS_EX_CMD_CREATE_FLOW] = ib_uverbs_ex_create_flow, @@ -557,6 +559,7 @@ void ib_uverbs_free_async_event_file(struct ib_uverbs_file *file) } struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file, + struct ib_device *ib_dev, int is_async) { struct ib_uverbs_event_file *ev_file; @@ -586,7 +589,7 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file, uverbs_file->async_file = ev_file; kref_get(&uverbs_file->async_file->ref); INIT_IB_EVENT_HANDLER(&uverbs_file->event_handler, - uverbs_file->device->ib_dev, + ib_dev, ib_uverbs_event_handler); ret = ib_register_event_handler(&uverbs_file->event_handler); if (ret) @@ -643,9 +646,13 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, size_t count, loff_t *pos) { struct ib_uverbs_file *file = filp->private_data; + struct ib_device *ib_dev = file->device->ib_dev; struct ib_uverbs_cmd_hdr hdr; __u32 flags; + if (!ib_dev) + return -ENODEV; + if (count < sizeof hdr) return -EINVAL; @@ -672,13 +679,13 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, command != IB_USER_VERBS_CMD_GET_CONTEXT) return -EINVAL; - if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << command))) + if (!(ib_dev->uverbs_cmd_mask & (1ull << command))) return -ENOSYS; if (hdr.in_words * 4 != count) return -EINVAL; - return uverbs_cmd_table[command](file, + return uverbs_cmd_table[command](file, ib_dev, buf + sizeof(hdr), hdr.in_words * 4, hdr.out_words * 4); @@ -705,7 +712,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, if (!file->ucontext) return -EINVAL; - if (!(file->device->ib_dev->uverbs_ex_cmd_mask & (1ull << command))) + if (!(ib_dev->uverbs_ex_cmd_mask & (1ull << command))) return -ENOSYS; if (count < (sizeof(hdr) + sizeof(ex_hdr))) @@ -746,6 +753,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, ex_hdr.provider_out_words * 8); err = uverbs_ex_cmd_table[command](file, + ib_dev, &ucore, &uhw); @@ -761,11 +769,12 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma) { struct ib_uverbs_file *file = filp->private_data; + struct ib_device *ib_dev = file->device->ib_dev; - if (!file->ucontext) + if (!ib_dev || !file->ucontext) return -ENODEV; else - return file->device->ib_dev->mmap(file->ucontext, vma); + return ib_dev->mmap(file->ucontext, vma); } /* |