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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>
This commit is contained in:
Gerd Hoffmann 2018-03-21 15:08:47 +01:00 committed by Zhenyu Wang
parent d830307569
commit 9f591ae60e
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/gvt/kvmgt.c
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@ -1254,7 +1254,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
}
return 0;
return -ENOTTY;
}
static ssize_t