diff options
| -rw-r--r-- | fs/inotify_user.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/inotify_user.c b/fs/inotify_user.c index 55f6da5..9f2224f 100644 --- a/fs/inotify_user.c +++ b/fs/inotify_user.c @@ -455,8 +455,16 @@ static ssize_t inotify_read(struct file *file, char __user *buf, break; kevent = inotify_dev_get_event(dev); - if (event_size + kevent->event.len > count) + if (event_size + kevent->event.len > count) { + if (ret == 0 && count > 0) { + /* + * could not get a single event because we + * didn't have enough buffer space. + */ + ret = -EINVAL; + } break; + } if (copy_to_user(buf, &kevent->event, event_size)) { ret = -EFAULT; |