提交 0174b381 编写于 作者: S Sasha Levin 提交者: Doug Ledford

IB/ucma: check workqueue allocation before usage

Allocating a workqueue might fail, which wasn't checked so far and would
lead to NULL ptr derefs when an attempt to use it was made.
Signed-off-by: NSasha Levin <sasha.levin@oracle.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
上级 b3b51f9f
......@@ -1624,11 +1624,16 @@ static int ucma_open(struct inode *inode, struct file *filp)
if (!file)
return -ENOMEM;
file->close_wq = create_singlethread_workqueue("ucma_close_id");
if (!file->close_wq) {
kfree(file);
return -ENOMEM;
}
INIT_LIST_HEAD(&file->event_list);
INIT_LIST_HEAD(&file->ctx_list);
init_waitqueue_head(&file->poll_wait);
mutex_init(&file->mut);
file->close_wq = create_singlethread_workqueue("ucma_close_id");
filp->private_data = file;
file->filp = filp;
......
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