diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2018-03-21 15:08:47 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-26 11:00:37 +0200 |
| commit | a864c3295d0327ba83d491da84858a4ee403d970 (patch) | |
| tree | 014cc813b745f4015d3e6e901be54c297c71b5ee | |
| parent | 86c9663495cd5142a11cd4c60f113f31c7fbe0c4 (diff) | |
drm/i915/gvt: throw error on unhandled vfio ioctls
commit 9f591ae60e1be026901398ef99eede91237aa3a1 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 021f722e2481..f34d7f1e6c4e 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1284,7 +1284,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd, } - return 0; + return -ENOTTY; } static ssize_t |