On 2018.03.21 09:44:32 -0600, Alex Williamson wrote:

On Wed, 21 Mar 2018 15:08:47 +0100 Gerd Hoffmann kraxel@redhat.com wrote:

...

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

---

drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 021f722e24..f34d7f1e6c 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

Reviewed-by: Alex Williamson alex.williamson@redhat.com

Applied, thanks!