evdev: don't allow a trackpoint range of 0

https://bugzilla.redhat.com/show_bug.cgi?id=1583324

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

diff --git a/src/evdev.c b/src/evdev.c
index 625413c763fa60cc89c981c67dca5b501694c9d6..ee61e4342b9c083c6c21a88367315714e5c2bedb 100644 (file)
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -1215,6 +1215,11 @@ evdev_get_trackpoint_range(struct evdev_device *device)
        }
 
 out:
+       if (range == 0) {
+               evdev_log_bug_libinput(device, "trackpoint range is zero\n");
+               range = DEFAULT_TRACKPOINT_RANGE;
+       }
+
        evdev_log_info(device, "trackpoint device set to range %d\n", range);
        return range;
 }