diff options
| -rw-r--r-- | drivers/input/evdev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 03344b3c7c15..a9d871651ce7 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -412,6 +412,9 @@ static ssize_t evdev_read(struct file *file, char __user *buffer, retval += input_event_size(); } + if (retval == 0 && (file->f_flags & O_NONBLOCK)) + return -EAGAIN; + return retval; } |