diff options
| -rw-r--r-- | drivers/virtio/virtio_input.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/virtio/virtio_input.c b/drivers/virtio/virtio_input.c index 244965c20d9b..ce51ae165943 100644 --- a/drivers/virtio/virtio_input.c +++ b/drivers/virtio/virtio_input.c @@ -7,6 +7,7 @@ #include <uapi/linux/virtio_ids.h> #include <uapi/linux/virtio_input.h> +#include <linux/input/mt.h> struct virtio_input { struct virtio_device *vdev; @@ -219,7 +220,7 @@ static int virtinput_probe(struct virtio_device *vdev) struct virtio_input *vi; unsigned long flags; size_t size; - int abs, err; + int abs, err, nslots; if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) return -ENODEV; @@ -304,6 +305,13 @@ static int virtinput_probe(struct virtio_device *vdev) continue; virtinput_cfg_abs(vi, abs); } + + if (test_bit(ABS_MT_SLOT, vi->idev->absbit)) { + nslots = input_abs_get_max(vi->idev, ABS_MT_SLOT) + 1; + err = input_mt_init_slots(vi->idev, nslots, 0); + if (err) + goto err_mt_init_slots; + } } virtio_device_ready(vdev); @@ -319,6 +327,7 @@ err_input_register: spin_lock_irqsave(&vi->lock, flags); vi->ready = false; spin_unlock_irqrestore(&vi->lock, flags); +err_mt_init_slots: input_free_device(vi->idev); err_input_alloc: vdev->config->del_vqs(vdev); |