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From 6d3d23c57b33d76f0b4f01221593182c0de34ef4 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Mon, 25 Jul 2016 16:10:04 -0700
Subject: [PATCH] drm/vc4: Fix oops when userspace hands in a bad BO.
We'd end up NULL pointer dereferencing because we didn't take the
error path out in the parent. Fixes igt vc4_lookup_fail test.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.")
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/vc4/vc4_gem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -585,7 +585,7 @@ vc4_cl_lookup_bos(struct drm_device *dev
fail:
drm_free_large(handles);
- return 0;
+ return ret;
}
static int
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