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path: root/drivers/gpu/drm/virtio/virtgpu_kms.c
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Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_kms.c')
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_kms.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index bf609dcae224..691b842d5f3a 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -55,10 +55,11 @@ static void virtio_gpu_config_changed_work_func(struct work_struct *work)
static int virtio_gpu_context_create(struct virtio_gpu_device *vgdev,
uint32_t nlen, const char *name)
{
- int handle = ida_alloc_min(&vgdev->ctx_id_ida, 1, GFP_KERNEL);
+ int handle = ida_alloc(&vgdev->ctx_id_ida, GFP_KERNEL);
if (handle < 0)
return handle;
+ handle += 1;
virtio_gpu_cmd_context_create(vgdev, handle, nlen, name);
return handle;
}
@@ -67,7 +68,7 @@ static void virtio_gpu_context_destroy(struct virtio_gpu_device *vgdev,
uint32_t ctx_id)
{
virtio_gpu_cmd_context_destroy(vgdev, ctx_id);
- ida_free(&vgdev->ctx_id_ida, ctx_id);
+ ida_free(&vgdev->ctx_id_ida, ctx_id - 1);
}
static void virtio_gpu_init_vq(struct virtio_gpu_queue *vgvq,
@@ -266,8 +267,10 @@ int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file)
get_task_comm(dbgname, current);
id = virtio_gpu_context_create(vgdev, strlen(dbgname), dbgname);
- if (id < 0)
+ if (id < 0) {
+ kfree(vfpriv);
return id;
+ }
vfpriv->ctx_id = id;
file->driver_priv = vfpriv;