20402106a3
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
25 lines
803 B
Diff
25 lines
803 B
Diff
From 5528526faa0302e28b284590f761d43d66e85632 Mon Sep 17 00:00:00 2001
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From: Eric Anholt <eric@anholt.net>
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Date: Mon, 25 Jan 2016 13:05:00 -0800
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Subject: [PATCH 194/423] drm/vc4: Validate that WAIT_BO padding is cleared.
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This is ABI future-proofing if we ever want to extend the pad to mean
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something.
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Signed-off-by: Eric Anholt <eric@anholt.net>
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---
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drivers/gpu/drm/vc4/vc4_gem.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/gpu/drm/vc4/vc4_gem.c
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+++ b/drivers/gpu/drm/vc4/vc4_gem.c
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@@ -761,6 +761,9 @@ vc4_wait_bo_ioctl(struct drm_device *dev
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struct drm_gem_object *gem_obj;
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struct vc4_bo *bo;
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+ if (args->pad != 0)
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+ return -EINVAL;
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+
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gem_obj = drm_gem_object_lookup(dev, file_priv, args->handle);
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if (!gem_obj) {
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DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
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