From: Ladi Prosek Date: Fri, 8 Apr 2016 15:21:33 +0000 (+0200) Subject: virtio-input: fix emulated tablet axis ranges X-Git-Tag: qemu-xen-4.8.0-rc1~322^2~2 X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=0263b3a72fbd2ac9ba59ecc2449a9bc53ccf6fb3;p=qemu-xen.git virtio-input: fix emulated tablet axis ranges The reported maximum was wrong. The X and Y coordinates are 0-based so if size is 8000 maximum must be 7FFF. Signed-off-by: Ladi Prosek Message-id: 1460128893-10244-1-git-send-email-lprosek@redhat.com Signed-off-by: Gerd Hoffmann --- diff --git a/hw/input/virtio-input-hid.c b/hw/input/virtio-input-hid.c index fe6d37fd73..3ee0c1814a 100644 --- a/hw/input/virtio-input-hid.c +++ b/hw/input/virtio-input-hid.c @@ -484,12 +484,12 @@ static struct virtio_input_config virtio_tablet_config[] = { .select = VIRTIO_INPUT_CFG_ABS_INFO, .subsel = ABS_X, .size = sizeof(virtio_input_absinfo), - .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE), + .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE - 1), },{ .select = VIRTIO_INPUT_CFG_ABS_INFO, .subsel = ABS_Y, .size = sizeof(virtio_input_absinfo), - .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE), + .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE - 1), }, { /* end of list */ }, };