diff options
| author |   Gerd Hoffmann <kraxel@redhat.com> | 2018-03-21 15:08:47 +0100 |
|---|---|---|
| committer |   Zhenyu Wang <zhenyuw@linux.intel.com> | 2018-03-22 10:20:12 +0800 |
| commit | 9f591ae60e1be026901398ef99eede91237aa3a1 (patch) | |
| tree | b50708b4d0c1f8111560169602b855f19fde931a /drivers/gpu/drm/i915/gvt/kvmgt.c | |
| parent | drm/i915/gvt: force to set all context control bits from guest (diff) | |
| download | linux-dev-9f591ae60e1be026901398ef99eede91237aa3a1.tar.xz linux-dev-9f591ae60e1be026901398ef99eede91237aa3a1.zip | |
drm/i915/gvt: throw error on unhandled vfio ioctls
On unknown/unhandled ioctls the driver should return an error, so
userspace knows it tried to use something unsupported.
Cc: stable@vger.kernel.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/kvmgt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/kvmgt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 520fe3d0a882..f8540cc67b44 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1254,7 +1254,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd, } - return 0; + return -ENOTTY; } static ssize_t |