drm/virtio: use u64_to_user_ptr macro

Other DRM drivers use it too.

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190604234428.23252-1-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index b7f9dfe61d1c1d3a57b2a9d26736063af9fd0247..8a17ef97aadaa1ee87f1ef426d8c5171be743b41 100644 (file)
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -168,7 +168,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
                        goto out_unused_fd;
                }
 
-               user_bo_handles = (void __user *)(uintptr_t)exbuf->bo_handles;
+               user_bo_handles = u64_to_user_ptr(exbuf->bo_handles);
                if (copy_from_user(bo_handles, user_bo_handles,
                                   exbuf->num_bo_handles * sizeof(uint32_t))) {
                        ret = -EFAULT;
@@ -195,8 +195,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
        if (ret)
                goto out_free;
 
-       buf = memdup_user((void __user *)(uintptr_t)exbuf->command,
-                         exbuf->size);
+       buf = memdup_user(u64_to_user_ptr(exbuf->command), exbuf->size);
        if (IS_ERR(buf)) {
                ret = PTR_ERR(buf);
                goto out_unresv;
@@ -263,10 +262,9 @@ static int virtio_gpu_getparam_ioctl(struct drm_device *dev, void *data,
        default:
                return -EINVAL;
        }
-       if (copy_to_user((void __user *)(unsigned long)param->value,
-                        &value, sizeof(int))) {
+       if (copy_to_user(u64_to_user_ptr(param->value), &value, sizeof(int)))
                return -EFAULT;
-       }
+
        return 0;
 }
 
@@ -545,7 +543,7 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
        ptr = cache_ent->caps_cache;
 
 copy_exit:
-       if (copy_to_user((void __user *)(unsigned long)args->addr, ptr, size))
+       if (copy_to_user(u64_to_user_ptr(args->addr), ptr, size))
                return -EFAULT;
 
        return 0;