diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2018-03-21 17:08:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-26 12:02:02 +0300 |
| commit | c53f225fd792970c75ce0cb4042a11d04ef06d09 (patch) | |
| tree | 0d8a8397849d92bd10ecf86304670a0db3e26438 | |
| parent | 325abf3db041d7ca130a5f84024da2ffffa35f0e (diff) | |
| download | linux-c53f225fd792970c75ce0cb4042a11d04ef06d09.tar.xz | |
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 83e88c70272a..9bf4045cd679 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1153,7 +1153,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd, return 0; } - return 0; + return -ENOTTY; } static ssize_t |