Return EBADF when trying to read from an uninitalized device

All other functions that check the fd for validity return EBADF, which also makes it
easier to debug if the actual device goes away.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>

diff --git a/libevdev/libevdev.c b/libevdev/libevdev.c
index 436f7a9..1c99e1f 100644 (file)
--- a/libevdev/libevdev.c
+++ b/libevdev/libevdev.c
@@ -663,7 +663,7 @@ libevdev_next_event(struct libevdev *dev, unsigned int flags, struct input_event
        int rc = 0;
 
        if (dev->fd < 0)
-               return -ENODEV;
+               return -EBADF;
 
        if (!(flags & (LIBEVDEV_READ_NORMAL|LIBEVDEV_READ_SYNC|LIBEVDEV_FORCE_SYNC)))
                return -EINVAL;