Don't allow a negative fd in libevdev_set_fd

Everything else responds with -EBADF, let's do so here as well.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/libevdev/libevdev.c b/libevdev/libevdev.c
index d01f38a..fd3c010 100644 (file)
--- a/libevdev/libevdev.c
+++ b/libevdev/libevdev.c
@@ -209,7 +209,8 @@ libevdev_set_fd(struct libevdev* dev, int fd)
        if (dev->initialized) {
                log_bug("device already initialized.\n");
                return -EBADF;
-       }
+       } else if (fd < 0)
+               return -EBADF;
 
        rc = ioctl(fd, EVIOCGBIT(0, sizeof(dev->bits)), dev->bits);
        if (rc < 0)