diff options
Diffstat (limited to 'components/libc/posix/io/poll/poll.c')
| -rw-r--r-- | components/libc/posix/io/poll/poll.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/components/libc/posix/io/poll/poll.c b/components/libc/posix/io/poll/poll.c index 3667216081..1e4f5effb4 100644 --- a/components/libc/posix/io/poll/poll.c +++ b/components/libc/posix/io/poll/poll.c @@ -214,16 +214,28 @@ static int do_pollfd(struct pollfd *pollfd, rt_pollreq_t *req) if (fd >= 0) { struct dfs_file *f = fd_get(fd); + const struct dfs_file_ops *fops = RT_NULL; mask = POLLNVAL; if (f) { +#ifdef RT_USING_DFS_V2 + fops = f->fops; +#else + if (f->vnode) + { + fops = f->vnode->fops; + } +#endif + } + if (fops) + { mask = POLLMASK_DEFAULT; - if (f->vnode->fops->poll) + if (fops->poll) { req->_key = pollfd->events | POLLERR | POLLHUP; - mask = f->vnode->fops->poll(f, req); + mask = fops->poll(f, req); /* dealwith the device return error -1*/ if (mask < 0) |