diff options
| author | David Riley <davidriley@chromium.org> | 2019-09-11 21:14:03 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2019-09-12 10:49:24 +0300 |
| commit | e1218b8c0cc1f8108be67ba3783d63eb4a50d792 (patch) | |
| tree | 959d8edb7cb4b776b08d0049b6624fadc4f36ab6 /drivers/gpu/drm/virtio/virtgpu_ioctl.c | |
| parent | 32d6c2c5b5227cfc6f796bbd760dab81b05f48e5 (diff) | |
| download | linux-e1218b8c0cc1f8108be67ba3783d63eb4a50d792.tar.xz | |
drm/virtio: Use vmalloc for command buffer allocations.
Userspace requested command buffer allocations could be too large
to make as a contiguous allocation. Use vmalloc if necessary to
satisfy those allocations.
Signed-off-by: David Riley <davidriley@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190911181403.40909-3-davidriley@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_ioctl.c')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_ioctl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index f5083c538f9c..9af1ec62434f 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -143,7 +143,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, goto out_unused_fd; } - buf = memdup_user(u64_to_user_ptr(exbuf->command), exbuf->size); + buf = vmemdup_user(u64_to_user_ptr(exbuf->command), exbuf->size); if (IS_ERR(buf)) { ret = PTR_ERR(buf); goto out_unresv; @@ -172,7 +172,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, return 0; out_memdup: - kfree(buf); + kvfree(buf); out_unresv: if (buflist) virtio_gpu_array_unlock_resv(buflist); |